87490370 has 32 divisors (see below), whose sum is σ = 177348096. Its totient is φ = 30787200.

The previous prime is 87490357. The next prime is 87490373. The reversal of 87490370 is 7309478.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (87490373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9419 + ... + 16238.

It is an arithmetic number, because the mean of its divisors is an integer number (5542128).

Almost surely, 2^87490370 is an apocalyptic number.

87490370 is an abundant number, since it is smaller than the sum of its proper divisors (89857726).

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

87490370 is a wasteful number, since it uses less digits than its factorization.

87490370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25706.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 87490370 is about 9353.6287076193. The cubic root of 87490370 is about 443.9357135775.

The spelling of 87490370 in words is "eighty-seven million, four hundred ninety thousand, three hundred seventy".