47197137 has 24 divisors (see below), whose sum is σ = 68772864. Its totient is φ = 28776384.

The previous prime is 47197099. The next prime is 47197141. The reversal of 47197137 is 73179174.

It is not a de Polignac number, because 47197137 - 2⁷ = 47197009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 47197095 and 47197104.

It is not an unprimeable number, because it can be changed into a prime (47197537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64023 + ... + 64755.

It is an arithmetic number, because the mean of its divisors is an integer number (2865536).

Almost surely, 2^47197137 is an apocalyptic number.

It is an amenable number.

47197137 is a deficient number, since it is larger than the sum of its proper divisors (21575727).

47197137 is a wasteful number, since it uses less digits than its factorization.

47197137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 876 counting only the distinct ones).

The product of its digits is 37044, while the sum is 39.

The square root of 47197137 is about 6870.0172488866. The cubic root of 47197137 is about 361.3864667223.

The spelling of 47197137 in words is "forty-seven million, one hundred ninety-seven thousand, one hundred thirty-seven".