61628699 has 8 divisors (see below), whose sum is σ = 68871600. Its totient is φ = 54659200.

The previous prime is 61628681. The next prime is 61628719. The reversal of 61628699 is 99682616.

61628699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61628699 - 2⁸ = 61628443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61628999) 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 7 ways as a sum of consecutive naturals, for example, 67874 + ... + 68775.

It is an arithmetic number, because the mean of its divisors is an integer number (8608950).

Almost surely, 2^61628699 is an apocalyptic number.

61628699 is a deficient number, since it is larger than the sum of its proper divisors (7242901).

61628699 is a wasteful number, since it uses less digits than its factorization.

61628699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136701.

The product of its digits is 279936, while the sum is 47.

The square root of 61628699 is about 7850.3948308349. The cubic root of 61628699 is about 394.9974875661.

The spelling of 61628699 in words is "sixty-one million, six hundred twenty-eight thousand, six hundred ninety-nine".