73147964 has 24 divisors (see below), whose sum is σ = 133712880. Its totient is φ = 34978176.

The previous prime is 73147961. The next prime is 73147973. The reversal of 73147964 is 46974137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73147961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4544 + ... + 12920.

It is an arithmetic number, because the mean of its divisors is an integer number (5571370).

Almost surely, 2^73147964 is an apocalyptic number.

73147964 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

73147964 is a deficient number, since it is larger than the sum of its proper divisors (60564916).

73147964 is a wasteful number, since it uses less digits than its factorization.

73147964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8477 (or 8475 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 73147964 is about 8552.6583002012. The cubic root of 73147964 is about 418.2160997330.

The spelling of 73147964 in words is "seventy-three million, one hundred forty-seven thousand, nine hundred sixty-four".