247973015 has 8 divisors (see below), whose sum is σ = 300457248. Its totient is φ = 196452000.

The previous prime is 247973003. The next prime is 247973017. The reversal of 247973015 is 510379742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 247973015 - 2¹⁸ = 247710871 is a prime.

It is a super-2 number, since 2×247973015² = 122981232336380450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 247973015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247973017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240236 + ... + 241265.

It is an arithmetic number, because the mean of its divisors is an integer number (37557156).

Almost surely, 2^247973015 is an apocalyptic number.

247973015 is a deficient number, since it is larger than the sum of its proper divisors (52484233).

247973015 is a wasteful number, since it uses less digits than its factorization.

247973015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481609.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 247973015 is about 15747.1589501091. The cubic root of 247973015 is about 628.2533419751.

The spelling of 247973015 in words is "two hundred forty-seven million, nine hundred seventy-three thousand, fifteen".