89974751 has 2 divisors, whose sum is σ = 89974752. Its totient is φ = 89974750.

The previous prime is 89974691. The next prime is 89974783. The reversal of 89974751 is 15747998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89974751 - 2¹⁴ = 89958367 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89974751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89976751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44987375 + 44987376.

It is an arithmetic number, because the mean of its divisors is an integer number (44987376).

Almost surely, 2^89974751 is an apocalyptic number.

89974751 is a deficient number, since it is larger than the sum of its proper divisors (1).

89974751 is an equidigital number, since it uses as much as digits as its factorization.

89974751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 50.

The square root of 89974751 is about 9485.5021480151. The cubic root of 89974751 is about 448.0985629626.

The spelling of 89974751 in words is "eighty-nine million, nine hundred seventy-four thousand, seven hundred fifty-one".