8692055921 has 2 divisors, whose sum is σ = 8692055922. Its totient is φ = 8692055920.

The previous prime is 8692055899. The next prime is 8692055959. The reversal of 8692055921 is 1295502968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6820282225 + 1871773696 = 82585^2 + 43264^2 .

It is a cyclic number.

It is not a de Polignac number, because 8692055921 - 2⁶ = 8692055857 is a prime.

It is a super-2 number, since 2×8692055921² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8692055221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4346027960 + 4346027961.

It is an arithmetic number, because the mean of its divisors is an integer number (4346027961).

Almost surely, 2^8692055921 is an apocalyptic number.

It is an amenable number.

8692055921 is a deficient number, since it is larger than the sum of its proper divisors (1).

8692055921 is an equidigital number, since it uses as much as digits as its factorization.

8692055921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 8692055921 is about 93231.1960719158. The cubic root of 8692055921 is about 2056.0839229806.

The spelling of 8692055921 in words is "eight billion, six hundred ninety-two million, fifty-five thousand, nine hundred twenty-one".