77871452 has 24 divisors (see below), whose sum is σ = 140303856. Its totient is φ = 37795968.

The previous prime is 77871439. The next prime is 77871499. The reversal of 77871452 is 25417877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28448 + ... + 31064.

It is an arithmetic number, because the mean of its divisors is an integer number (5845994).

Almost surely, 2^77871452 is an apocalyptic number.

It is an amenable number.

77871452 is a deficient number, since it is larger than the sum of its proper divisors (62432404).

77871452 is a wasteful number, since it uses less digits than its factorization.

77871452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2835 counting only the distinct ones).

The product of its digits is 109760, while the sum is 41.

The square root of 77871452 is about 8824.4802679818. The cubic root of 77871452 is about 427.0310204215.

The spelling of 77871452 in words is "seventy-seven million, eight hundred seventy-one thousand, four hundred fifty-two".