47263257 has 16 divisors (see below), whose sum is σ = 70887360. Its totient is φ = 31507380.

The previous prime is 47263199. The next prime is 47263261. The reversal of 47263257 is 75236274.

It is a happy number.

It is not a de Polignac number, because 47263257 - 2⁷ = 47263129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47263277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8619 + ... + 12992.

It is an arithmetic number, because the mean of its divisors is an integer number (4430460).

Almost surely, 2^47263257 is an apocalyptic number.

It is an amenable number.

47263257 is a deficient number, since it is larger than the sum of its proper divisors (23624103).

47263257 is an frugal number, since it uses more digits than its factorization.

47263257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21632 (or 21614 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 47263257 is about 6874.8277796611. The cubic root of 47263257 is about 361.5551473176. Note that the first 3 decimals are identical.

The spelling of 47263257 in words is "forty-seven million, two hundred sixty-three thousand, two hundred fifty-seven".