93460721 has 2 divisors, whose sum is σ = 93460722. Its totient is φ = 93460720.

The previous prime is 93460673. The next prime is 93460789. The reversal of 93460721 is 12706439.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52998400 + 40462321 = 7280^2 + 6361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93460721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (93460021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46730360 + 46730361.

It is an arithmetic number, because the mean of its divisors is an integer number (46730361).

Almost surely, 2^93460721 is an apocalyptic number.

It is an amenable number.

93460721 is a deficient number, since it is larger than the sum of its proper divisors (1).

93460721 is an equidigital number, since it uses as much as digits as its factorization.

93460721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 93460721 is about 9667.5085208134. The cubic root of 93460721 is about 453.8124180590.

The spelling of 93460721 in words is "ninety-three million, four hundred sixty thousand, seven hundred twenty-one".