61628837 has 12 divisors (see below), whose sum is σ = 67153536. Its totient is φ = 56491560.

The previous prime is 61628821. The next prime is 61628839. The reversal of 61628837 is 73882616.

It is a happy number.

61628837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61628837 - 2⁴ = 61628821 is a prime.

It is a super-2 number, since 2×61628837² = 7596227099945138, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61628794 and 61628803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61628839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8438 + ... + 13944.

It is an arithmetic number, because the mean of its divisors is an integer number (5596128).

Almost surely, 2^61628837 is an apocalyptic number.

It is an amenable number.

61628837 is a deficient number, since it is larger than the sum of its proper divisors (5524699).

61628837 is a wasteful number, since it uses less digits than its factorization.

61628837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576 (or 5557 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 61628837 is about 7850.4036201969. The cubic root of 61628837 is about 394.9977823942.

The spelling of 61628837 in words is "sixty-one million, six hundred twenty-eight thousand, eight hundred thirty-seven".