76948621 has 2 divisors, whose sum is σ = 76948622. Its totient is φ = 76948620.

The previous prime is 76948601. The next prime is 76948667. The reversal of 76948621 is 12684967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76912900 + 35721 = 8770^2 + 189^2 .

It is a cyclic number.

It is not a de Polignac number, because 76948621 - 2¹³ = 76940429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76948601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38474310 + 38474311.

It is an arithmetic number, because the mean of its divisors is an integer number (38474311).

Almost surely, 2^76948621 is an apocalyptic number.

It is an amenable number.

76948621 is a deficient number, since it is larger than the sum of its proper divisors (1).

76948621 is an equidigital number, since it uses as much as digits as its factorization.

76948621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 76948621 is about 8772.0363086344. The cubic root of 76948621 is about 425.3374408895.

The spelling of 76948621 in words is "seventy-six million, nine hundred forty-eight thousand, six hundred twenty-one".