900628806997 has 2 divisors, whose sum is σ = 900628806998. Its totient is φ = 900628806996.

The previous prime is 900628806911. The next prime is 900628807019. The reversal of 900628806997 is 799608826009.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 588118738321 + 312510068676 = 766889^2 + 559026^2 .

It is a cyclic number.

It is not a de Polignac number, because 900628806997 - 2²³ = 900620418389 is a prime.

It is a super-2 number, since 2×900628806997² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900628806097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450314403498 + 450314403499.

It is an arithmetic number, because the mean of its divisors is an integer number (450314403499).

Almost surely, 2^900628806997 is an apocalyptic number.

It is an amenable number.

900628806997 is a deficient number, since it is larger than the sum of its proper divisors (1).

900628806997 is an equidigital number, since it uses as much as digits as its factorization.

900628806997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 900628806997 in words is "nine hundred billion, six hundred twenty-eight million, eight hundred six thousand, nine hundred ninety-seven".