47292021 has 12 divisors (see below), whose sum is σ = 78069472. Its totient is φ = 27023976.

The previous prime is 47292013. The next prime is 47292023. The reversal of 47292021 is 12029274.

It is not a de Polignac number, because 47292021 - 2³ = 47292013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47292023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375271 + ... + 375396.

Almost surely, 2^47292021 is an apocalyptic number.

It is an amenable number.

47292021 is a deficient number, since it is larger than the sum of its proper divisors (30777451).

47292021 is a wasteful number, since it uses less digits than its factorization.

47292021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750680 (or 750677 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 47292021 is about 6876.9194411451. The cubic root of 47292021 is about 361.6284788644.

The spelling of 47292021 in words is "forty-seven million, two hundred ninety-two thousand, twenty-one".