102628657 has 8 divisors (see below), whose sum is σ = 105872192. Its totient is φ = 99435600.

The previous prime is 102628637. The next prime is 102628679. The reversal of 102628657 is 756826201.

It is a happy number.

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 102628657 - 2¹⁹ = 102104369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102628627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8469 + ... + 16642.

It is an arithmetic number, because the mean of its divisors is an integer number (13234024).

Almost surely, 2^102628657 is an apocalyptic number.

It is an amenable number.

102628657 is a deficient number, since it is larger than the sum of its proper divisors (3243535).

102628657 is an equidigital number, since it uses as much as digits as its factorization.

102628657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25239.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 102628657 is about 10130.5802894010. The cubic root of 102628657 is about 468.1908069089.

It can be divided in two parts, 102628 and 657, that added together give a triangular number (103285 = T₄₅₄).

The spelling of 102628657 in words is "one hundred two million, six hundred twenty-eight thousand, six hundred fifty-seven".