79744087 has 2 divisors, whose sum is σ = 79744088. Its totient is φ = 79744086.

The previous prime is 79744079. The next prime is 79744097. The reversal of 79744087 is 78044797.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79744087 - 2³ = 79744079 is a prime.

It is a super-2 number, since 2×79744087² = 12718238822927138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79744097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39872043 + 39872044.

It is an arithmetic number, because the mean of its divisors is an integer number (39872044).

Almost surely, 2^79744087 is an apocalyptic number.

79744087 is a deficient number, since it is larger than the sum of its proper divisors (1).

79744087 is an equidigital number, since it uses as much as digits as its factorization.

79744087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 79744087 is about 8929.9544791673. The cubic root of 79744087 is about 430.4269906761.

The spelling of 79744087 in words is "seventy-nine million, seven hundred forty-four thousand, eighty-seven".