76902121 has 2 divisors, whose sum is σ = 76902122. Its totient is φ = 76902120.

The previous prime is 76902079. The next prime is 76902127. The reversal of 76902121 is 12120967.

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., 71166096 + 5736025 = 8436^2 + 2395^2 .

It is an emirp because it is prime and its reverse (12120967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76902121 - 2¹¹ = 76900073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76902121.

It is not a weakly prime, because it can be changed into another prime (76902127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38451060 + 38451061.

It is an arithmetic number, because the mean of its divisors is an integer number (38451061).

Almost surely, 2^76902121 is an apocalyptic number.

It is an amenable number.

76902121 is a deficient number, since it is larger than the sum of its proper divisors (1).

76902121 is an equidigital number, since it uses as much as digits as its factorization.

76902121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 76902121 is about 8769.3854402689. The cubic root of 76902121 is about 425.2517465822.

The spelling of 76902121 in words is "seventy-six million, nine hundred two thousand, one hundred twenty-one".