71973075 has 24 divisors (see below), whose sum is σ = 120779968. Its totient is φ = 37810080.

The previous prime is 71973061. The next prime is 71973089. The reversal of 71973075 is 57037917.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71973061) and next prime (71973089).

It is not a de Polignac number, because 71973075 - 2⁵ = 71973043 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2137 + ... + 12186.

Almost surely, 2^71973075 is an apocalyptic number.

71973075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

71973075 is a deficient number, since it is larger than the sum of its proper divisors (48806893).

71973075 is a wasteful number, since it uses less digits than its factorization.

71973075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14403 (or 14398 counting only the distinct ones).

The product of its (nonzero) digits is 46305, while the sum is 39.

The square root of 71973075 is about 8483.6946550427. The cubic root of 71973075 is about 415.9649004995.

The spelling of 71973075 in words is "seventy-one million, nine hundred seventy-three thousand, seventy-five".