71862372 has 18 divisors (see below), whose sum is σ = 181652198. Its totient is φ = 23954112.

The previous prime is 71862367. The next prime is 71862403. The reversal of 71862372 is 27326817.

It can be written as a sum of positive squares in only one way, i.e., 59074596 + 12787776 = 7686^2 + 3576^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×71862372³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1996177 = 71862372 / (7 + 1 + 8 + 6 + 2 + 3 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 998053 + ... + 998124.

Almost surely, 2^71862372 is an apocalyptic number.

It is an amenable number.

71862372 is an abundant number, since it is smaller than the sum of its proper divisors (109789826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71862372 is a wasteful number, since it uses less digits than its factorization.

71862372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996187 (or 1996182 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 71862372 is about 8477.1676873824. The cubic root of 71862372 is about 415.7515235206.

The spelling of 71862372 in words is "seventy-one million, eight hundred sixty-two thousand, three hundred seventy-two".