61628371 has 8 divisors (see below), whose sum is σ = 72150624. Its totient is φ = 51535680.

The previous prime is 61628353. The next prime is 61628423. The reversal of 61628371 is 17382616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61628371 - 2⁷ = 61628243 is a prime.

It is a super-2 number, since 2×61628371² = 7596112224227282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61628351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107080 + ... + 107653.

It is an arithmetic number, because the mean of its divisors is an integer number (9018828).

Almost surely, 2^61628371 is an apocalyptic number.

61628371 is a deficient number, since it is larger than the sum of its proper divisors (10522253).

61628371 is a wasteful number, since it uses less digits than its factorization.

61628371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214781.

The product of its digits is 12096, while the sum is 34.

The square root of 61628371 is about 7850.3739401381. The cubic root of 61628371 is about 394.9967868136.

The spelling of 61628371 in words is "sixty-one million, six hundred twenty-eight thousand, three hundred seventy-one".