71869944 has 16 divisors (see below), whose sum is σ = 179674920. Its totient is φ = 23956640.

The previous prime is 71869943. The next prime is 71869969. The reversal of 71869944 is 44996817.

It is a junction number, because it is equal to n+sod(n) for n = 71869893 and 71869902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71869943) 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, 1497267 + ... + 1497314.

Almost surely, 2^71869944 is an apocalyptic number.

It is an amenable number.

71869944 is an abundant number, since it is smaller than the sum of its proper divisors (107804976).

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

71869944 is a wasteful number, since it uses less digits than its factorization.

71869944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994590 (or 2994586 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 71869944 is about 8477.6142870503. The cubic root of 71869944 is about 415.7661253207.

The spelling of 71869944 in words is "seventy-one million, eight hundred sixty-nine thousand, nine hundred forty-four".