47139373 has 4 divisors (see below), whose sum is σ = 47386368. Its totient is φ = 46892380.

The previous prime is 47139353. The next prime is 47139377. The reversal of 47139373 is 37393174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47139373 - 2⁵ = 47139341 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 (47139377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123211 + ... + 123592.

It is an arithmetic number, because the mean of its divisors is an integer number (11846592).

Almost surely, 2^47139373 is an apocalyptic number.

It is an amenable number.

47139373 is a deficient number, since it is larger than the sum of its proper divisors (246995).

47139373 is a wasteful number, since it uses less digits than its factorization.

47139373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246994.

The product of its digits is 47628, while the sum is 37.

The square root of 47139373 is about 6865.8118966368. The cubic root of 47139373 is about 361.2389743724.

The spelling of 47139373 in words is "forty-seven million, one hundred thirty-nine thousand, three hundred seventy-three".