47979837 has 8 divisors (see below), whose sum is σ = 71081280. Its totient is φ = 31986540.

The previous prime is 47979829. The next prime is 47979889. The reversal of 47979837 is 73897974.

It is not a de Polignac number, because 47979837 - 2³ = 47979829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47974837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888489 + ... + 888542.

It is an arithmetic number, because the mean of its divisors is an integer number (8885160).

Almost surely, 2^47979837 is an apocalyptic number.

It is an amenable number.

47979837 is a deficient number, since it is larger than the sum of its proper divisors (23101443).

47979837 is a wasteful number, since it uses less digits than its factorization.

47979837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777040 (or 1777034 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 47979837 is about 6926.7479382463. The cubic root of 47979837 is about 363.3732244916.

The spelling of 47979837 in words is "forty-seven million, nine hundred seventy-nine thousand, eight hundred thirty-seven".