32499979 has 2 divisors, whose sum is σ = 32499980. Its totient is φ = 32499978.

The previous prime is 32499919. The next prime is 32499991. The reversal of 32499979 is 97999423.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32499979 - 2¹³ = 32491787 is a prime.

It is not a weakly prime, because it can be changed into another prime (32499919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16249989 + 16249990.

It is an arithmetic number, because the mean of its divisors is an integer number (16249990).

Almost surely, 2^32499979 is an apocalyptic number.

32499979 is a deficient number, since it is larger than the sum of its proper divisors (1).

32499979 is an equidigital number, since it uses as much as digits as its factorization.

32499979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 52.

The square root of 32499979 is about 5700.8752836736. The cubic root of 32499979 is about 319.1251462083.

The spelling of 32499979 in words is "thirty-two million, four hundred ninety-nine thousand, nine hundred seventy-nine".