79554641 has 2 divisors, whose sum is σ = 79554642. Its totient is φ = 79554640.

The previous prime is 79554593. The next prime is 79554721. The reversal of 79554641 is 14645597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76300225 + 3254416 = 8735^2 + 1804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79554641 is a prime.

It is not a weakly prime, because it can be changed into another prime (79557641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39777320 + 39777321.

It is an arithmetic number, because the mean of its divisors is an integer number (39777321).

Almost surely, 2^79554641 is an apocalyptic number.

It is an amenable number.

79554641 is a deficient number, since it is larger than the sum of its proper divisors (1).

79554641 is an equidigital number, since it uses as much as digits as its factorization.

79554641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 41.

The square root of 79554641 is about 8919.3408388737. The cubic root of 79554641 is about 430.0858689158.

The spelling of 79554641 in words is "seventy-nine million, five hundred fifty-four thousand, six hundred forty-one".