47101631 has 12 divisors (see below), whose sum is σ = 49570920. Its totient is φ = 44750640.

The previous prime is 47101573. The next prime is 47101657. The reversal of 47101631 is 13610174.

It is not a de Polignac number, because 47101631 - 2¹⁰ = 47100607 is a prime.

It is a super-2 number, since 2×47101631² = 4437127285720322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47101597 and 47101606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47101031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142136 + ... + 142466.

It is an arithmetic number, because the mean of its divisors is an integer number (4130910).

Almost surely, 2^47101631 is an apocalyptic number.

47101631 is a deficient number, since it is larger than the sum of its proper divisors (2469289).

47101631 is a wasteful number, since it uses less digits than its factorization.

47101631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 47101631 is about 6863.0628002372. The cubic root of 47101631 is about 361.1425403248.

The spelling of 47101631 in words is "forty-seven million, one hundred one thousand, six hundred thirty-one".