76391472 has 80 divisors (see below), whose sum is σ = 210522240. Its totient is φ = 23786496.

The previous prime is 76391467. The next prime is 76391531. The reversal of 76391472 is 27419367.

It is a self number, because there is not a number n which added to its sum of digits gives 76391472.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145803 + ... + 146325.

It is an arithmetic number, because the mean of its divisors is an integer number (2631528).

Almost surely, 2^76391472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76391472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105261120).

76391472 is an abundant number, since it is smaller than the sum of its proper divisors (134130768).

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

76391472 is a wasteful number, since it uses less digits than its factorization.

76391472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 724 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 76391472 is about 8740.2215074905. The cubic root of 76391472 is about 424.3083967319.

It can be divided in two parts, 763 and 91472, that added together give a triangular number (92235 = T₄₂₉).

The spelling of 76391472 in words is "seventy-six million, three hundred ninety-one thousand, four hundred seventy-two".