89503979 has 2 divisors, whose sum is σ = 89503980. Its totient is φ = 89503978.

The previous prime is 89503951. The next prime is 89503987. The reversal of 89503979 is 97930598.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89503979 - 2⁸ = 89503723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89500979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44751989 + 44751990.

It is an arithmetic number, because the mean of its divisors is an integer number (44751990).

Almost surely, 2^89503979 is an apocalyptic number.

89503979 is a deficient number, since it is larger than the sum of its proper divisors (1).

89503979 is an equidigital number, since it uses as much as digits as its factorization.

89503979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 89503979 is about 9460.6542585595. The cubic root of 89503979 is about 447.3156720326.

The spelling of 89503979 in words is "eighty-nine million, five hundred three thousand, nine hundred seventy-nine".