73475631 has 12 divisors (see below), whose sum is σ = 106401360. Its totient is φ = 48859200.

The previous prime is 73475629. The next prime is 73475653. The reversal of 73475631 is 13657437.

It is not a de Polignac number, because 73475631 - 2¹ = 73475629 is a prime.

It is a super-2 number, since 2×73475631² = 10797336701696322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73475671) 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, 6571 + ... + 13788.

It is an arithmetic number, because the mean of its divisors is an integer number (8866780).

Almost surely, 2^73475631 is an apocalyptic number.

73475631 is a deficient number, since it is larger than the sum of its proper divisors (32925729).

73475631 is a wasteful number, since it uses less digits than its factorization.

73475631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20766 (or 20763 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 73475631 is about 8571.7927529776. The cubic root of 73475631 is about 418.8396372749.

The spelling of 73475631 in words is "seventy-three million, four hundred seventy-five thousand, six hundred thirty-one".