76085921 has 2 divisors, whose sum is σ = 76085922. Its totient is φ = 76085920.

The previous prime is 76085857. The next prime is 76085923. The reversal of 76085921 is 12958067.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50694400 + 25391521 = 7120^2 + 5039^2 .

It is a cyclic number.

It is not a de Polignac number, because 76085921 - 2⁶ = 76085857 is a prime.

Together with 76085923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76085923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38042960 + 38042961.

It is an arithmetic number, because the mean of its divisors is an integer number (38042961).

Almost surely, 2^76085921 is an apocalyptic number.

It is an amenable number.

76085921 is a deficient number, since it is larger than the sum of its proper divisors (1).

76085921 is an equidigital number, since it uses as much as digits as its factorization.

76085921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 76085921 is about 8722.7244023871. The cubic root of 76085921 is about 423.7419238344.

The spelling of 76085921 in words is "seventy-six million, eighty-five thousand, nine hundred twenty-one".