247372986 has 16 divisors (see below), whose sum is σ = 565424064. Its totient is φ = 70677984.

The previous prime is 247372973. The next prime is 247372997. The reversal of 247372986 is 689273742.

It is a super-2 number, since 2×247372986² = 122386788405112392, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2944875 + ... + 2944958.

It is an arithmetic number, because the mean of its divisors is an integer number (35339004).

Almost surely, 2^247372986 is an apocalyptic number.

247372986 is an abundant number, since it is smaller than the sum of its proper divisors (318051078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247372986 is a wasteful number, since it uses less digits than its factorization.

247372986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889845.

The product of its digits is 1016064, while the sum is 48.

The square root of 247372986 is about 15728.0954346036. The cubic root of 247372986 is about 627.7461971554.

The spelling of 247372986 in words is "two hundred forty-seven million, three hundred seventy-two thousand, nine hundred eighty-six".