79758901 has 2 divisors, whose sum is σ = 79758902. Its totient is φ = 79758900.

The previous prime is 79758893. The next prime is 79758949. The reversal of 79758901 is 10985797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66031876 + 13727025 = 8126^2 + 3705^2 .

It is a cyclic number.

It is not a de Polignac number, because 79758901 - 2³ = 79758893 is a prime.

It is a super-2 number, since 2×79758901² = 12722964577455602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79758401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39879450 + 39879451.

It is an arithmetic number, because the mean of its divisors is an integer number (39879451).

Almost surely, 2^79758901 is an apocalyptic number.

It is an amenable number.

79758901 is a deficient number, since it is larger than the sum of its proper divisors (1).

79758901 is an equidigital number, since it uses as much as digits as its factorization.

79758901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 79758901 is about 8930.7838961650. The cubic root of 79758901 is about 430.4536423936.

The spelling of 79758901 in words is "seventy-nine million, seven hundred fifty-eight thousand, nine hundred one".