87396740 has 24 divisors (see below), whose sum is σ = 186121152. Its totient is φ = 34465760.

The previous prime is 87396739. The next prime is 87396761. The reversal of 87396740 is 4769378.

It is a junction number, because it is equal to n+sod(n) for n = 87396691 and 87396700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29354 + ... + 32193.

It is an arithmetic number, because the mean of its divisors is an integer number (7755048).

Almost surely, 2^87396740 is an apocalyptic number.

It is an amenable number.

87396740 is an abundant number, since it is smaller than the sum of its proper divisors (98724412).

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

87396740 is a wasteful number, since it uses less digits than its factorization.

87396740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61627 (or 61625 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 87396740 is about 9348.6223584013. The cubic root of 87396740 is about 443.7772940958. Note that the first 3 decimals are identical.

The spelling of 87396740 in words is "eighty-seven million, three hundred ninety-six thousand, seven hundred forty".