76954621 has 2 divisors, whose sum is σ = 76954622. Its totient is φ = 76954620.

The previous prime is 76954613. The next prime is 76954667. The reversal of 76954621 is 12645967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 4040100 = 8539^2 + 2010^2 .

It is an emirp because it is prime and its reverse (12645967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76954621 - 2³ = 76954613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76951621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38477310 + 38477311.

It is an arithmetic number, because the mean of its divisors is an integer number (38477311).

Almost surely, 2^76954621 is an apocalyptic number.

It is an amenable number.

76954621 is a deficient number, since it is larger than the sum of its proper divisors (1).

76954621 is an equidigital number, since it uses as much as digits as its factorization.

76954621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 76954621 is about 8772.3782978164. The cubic root of 76954621 is about 425.3484957045.

The spelling of 76954621 in words is "seventy-six million, nine hundred fifty-four thousand, six hundred twenty-one".