76540312 has 16 divisors (see below), whose sum is σ = 143673840. Its totient is φ = 38227296.

The previous prime is 76540279. The next prime is 76540313. The reversal of 76540312 is 21304567.

It is a super-2 number, since 2×76540312² = 11716838722114688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76540313) 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, 2998 + ... + 12730.

It is an arithmetic number, because the mean of its divisors is an integer number (8979615).

Almost surely, 2^76540312 is an apocalyptic number.

It is an amenable number.

76540312 is a deficient number, since it is larger than the sum of its proper divisors (67133528).

76540312 is a wasteful number, since it uses less digits than its factorization.

76540312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10722 (or 10718 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 76540312 is about 8748.7320224133. The cubic root of 76540312 is about 424.5837899938.

Adding to 76540312 its reverse (21304567), we get a palindrome (97844879).

The spelling of 76540312 in words is "seventy-six million, five hundred forty thousand, three hundred twelve".