76497820 has 36 divisors (see below), whose sum is σ = 186875640. Its totient is φ = 26227488.

The previous prime is 76497809. The next prime is 76497821. The reversal of 76497820 is 2879467.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76497821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38050 + ... + 40009.

It is an arithmetic number, because the mean of its divisors is an integer number (5190990).

Almost surely, 2^76497820 is an apocalyptic number.

76497820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

76497820 is an abundant number, since it is smaller than the sum of its proper divisors (110377820).

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

76497820 is a wasteful number, since it uses less digits than its factorization.

76497820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78082 (or 78073 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 76497820 is about 8746.3032190749. The cubic root of 76497820 is about 424.5052050251.

The spelling of 76497820 in words is "seventy-six million, four hundred ninety-seven thousand, eight hundred twenty".