93620521 has 2 divisors, whose sum is σ = 93620522. Its totient is φ = 93620520.

The previous prime is 93620477. The next prime is 93620533. The reversal of 93620521 is 12502639.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86118400 + 7502121 = 9280^2 + 2739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93620521 is a prime.

It is a super-2 number, since 2×93620521² = 17529603904622882, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 93620521.

It is not a weakly prime, because it can be changed into another prime (93620221) 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, 46810260 + 46810261.

It is an arithmetic number, because the mean of its divisors is an integer number (46810261).

Almost surely, 2^93620521 is an apocalyptic number.

It is an amenable number.

93620521 is a deficient number, since it is larger than the sum of its proper divisors (1).

93620521 is an equidigital number, since it uses as much as digits as its factorization.

93620521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 93620521 is about 9675.7697884975. The cubic root of 93620521 is about 454.0709150029.

The spelling of 93620521 in words is "ninety-three million, six hundred twenty thousand, five hundred twenty-one".