47342637 has 20 divisors (see below), whose sum is σ = 74883996. Its totient is φ = 29704320.

The previous prime is 47342629. The next prime is 47342641. The reversal of 47342637 is 73624374.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19527561 + 27815076 = 4419^2 + 5274^2 .

It is not a de Polignac number, because 47342637 - 2³ = 47342629 is a prime.

It is a super-2 number, since 2×47342637² = 4482650556227538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47342627) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15814 + ... + 18567.

Almost surely, 2^47342637 is an apocalyptic number.

It is an amenable number.

47342637 is a deficient number, since it is larger than the sum of its proper divisors (27541359).

47342637 is a wasteful number, since it uses less digits than its factorization.

47342637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34410 (or 34401 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The square root of 47342637 is about 6880.5985931458. The cubic root of 47342637 is about 361.7574481940.

The spelling of 47342637 in words is "forty-seven million, three hundred forty-two thousand, six hundred thirty-seven".