247690941 has 8 divisors (see below), whose sum is σ = 331253664. Its totient is φ = 164627760.

The previous prime is 247690873. The next prime is 247690981. The reversal of 247690941 is 149096742.

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

It is not a de Polignac number, because 247690941 - 2¹¹ = 247688893 is a prime.

It is a super-2 number, since 2×247690941² = 122701604506930962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247690893 and 247690902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247690981) 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, 123726 + ... + 125711.

It is an arithmetic number, because the mean of its divisors is an integer number (41406708).

Almost surely, 2^247690941 is an apocalyptic number.

It is an amenable number.

247690941 is a deficient number, since it is larger than the sum of its proper divisors (83562723).

247690941 is a wasteful number, since it uses less digits than its factorization.

247690941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249771.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 247690941 is about 15738.2000559149. The cubic root of 247690941 is about 628.0150349018.

The spelling of 247690941 in words is "two hundred forty-seven million, six hundred ninety thousand, nine hundred forty-one".