32249979 has 12 divisors (see below), whose sum is σ = 48608976. Its totient is φ = 20565072.

The previous prime is 32249963. The next prime is 32249983. The reversal of 32249979 is 97994223.

It is not a de Polignac number, because 32249979 - 2⁴ = 32249963 is a prime.

It is a super-2 number, since 2×32249979² = 2080122291000882, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (32249909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77692 + ... + 78105.

It is an arithmetic number, because the mean of its divisors is an integer number (4050748).

Almost surely, 2^32249979 is an apocalyptic number.

32249979 is a deficient number, since it is larger than the sum of its proper divisors (16358997).

32249979 is a wasteful number, since it uses less digits than its factorization.

32249979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155826 (or 155823 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 32249979 is about 5678.9064968531. The cubic root of 32249979 is about 318.3047689314.

It can be divided in two parts, 3224 and 9979, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 32249979 in words is "thirty-two million, two hundred forty-nine thousand, nine hundred seventy-nine".