47373021 has 6 divisors (see below), whose sum is σ = 68427710. Its totient is φ = 31582008.

The previous prime is 47373019. The next prime is 47373059. The reversal of 47373021 is 12037374.

It can be written as a sum of positive squares in only one way, i.e., 45077796 + 2295225 = 6714^2 + 1515^2 .

It is not a de Polignac number, because 47373021 - 2¹ = 47373019 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 (47373071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2631826 + ... + 2631843.

Almost surely, 2^47373021 is an apocalyptic number.

It is an amenable number.

47373021 is a deficient number, since it is larger than the sum of its proper divisors (21054689).

47373021 is a wasteful number, since it uses less digits than its factorization.

47373021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263675 (or 5263672 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 47373021 is about 6882.8061864330. The cubic root of 47373021 is about 361.8348223356.

The spelling of 47373021 in words is "forty-seven million, three hundred seventy-three thousand, twenty-one".