10687657 has 2 divisors, whose sum is σ = 10687658. Its totient is φ = 10687656.

The previous prime is 10687643. The next prime is 10687667. The reversal of 10687657 is 75678601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10686361 + 1296 = 3269^2 + 36^2 .

It is a cyclic number.

It is not a de Polignac number, because 10687657 - 2²³ = 2299049 is a prime.

It is a super-2 number, since 2×10687657² = 228452024299298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10687667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5343828 + 5343829.

It is an arithmetic number, because the mean of its divisors is an integer number (5343829).

Almost surely, 2^10687657 is an apocalyptic number.

It is an amenable number.

10687657 is a deficient number, since it is larger than the sum of its proper divisors (1).

10687657 is an equidigital number, since it uses as much as digits as its factorization.

10687657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 10687657 is about 3269.1982197475. The cubic root of 10687657 is about 220.2727814689.

The spelling of 10687657 in words is "ten million, six hundred eighty-seven thousand, six hundred fifty-seven".