47494631 has 2 divisors, whose sum is σ = 47494632. Its totient is φ = 47494630.

The previous prime is 47494621. The next prime is 47494673. The reversal of 47494631 is 13649474.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47494631 - 2⁶ = 47494567 is a prime.

It is a super-2 number, since 2×47494631² = 4511479947652322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47494621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23747315 + 23747316.

It is an arithmetic number, because the mean of its divisors is an integer number (23747316).

Almost surely, 2^47494631 is an apocalyptic number.

47494631 is a deficient number, since it is larger than the sum of its proper divisors (1).

47494631 is an equidigital number, since it uses as much as digits as its factorization.

47494631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 47494631 is about 6891.6348568391. The cubic root of 47494631 is about 362.1441765678.

The spelling of 47494631 in words is "forty-seven million, four hundred ninety-four thousand, six hundred thirty-one".