73479971 has 4 divisors (see below), whose sum is σ = 73536672. Its totient is φ = 73423272.

The previous prime is 73479961. The next prime is 73479977. The reversal of 73479971 is 17997437.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73479971 is a prime.

It is a super-2 number, since 2×73479971² = 10798612276321682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73479977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26360 + ... + 29013.

It is an arithmetic number, because the mean of its divisors is an integer number (18384168).

Almost surely, 2^73479971 is an apocalyptic number.

73479971 is a deficient number, since it is larger than the sum of its proper divisors (56701).

73479971 is a wasteful number, since it uses less digits than its factorization.

73479971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56700.

The product of its digits is 333396, while the sum is 47.

The square root of 73479971 is about 8572.0459051501. The cubic root of 73479971 is about 418.8478836745.

The spelling of 73479971 in words is "seventy-three million, four hundred seventy-nine thousand, nine hundred seventy-one".