47021355 has 24 divisors (see below), whose sum is σ = 82004832. Its totient is φ = 24923904.

The previous prime is 47021347. The next prime is 47021363. The reversal of 47021355 is 55312074.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47021347) and next prime (47021363).

It is not a de Polignac number, because 47021355 - 2³ = 47021347 is a prime.

It is a super-2 number, since 2×47021355² = 4422015652072050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4387 + ... + 10643.

It is an arithmetic number, because the mean of its divisors is an integer number (3416868).

Almost surely, 2^47021355 is an apocalyptic number.

47021355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47021355 is a deficient number, since it is larger than the sum of its proper divisors (34983477).

47021355 is a wasteful number, since it uses less digits than its factorization.

47021355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435 (or 6432 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 47021355 is about 6857.2118969739. The cubic root of 47021355 is about 360.9372568166.

The spelling of 47021355 in words is "forty-seven million, twenty-one thousand, three hundred fifty-five".