87760398 has 16 divisors (see below), whose sum is σ = 191477376. Its totient is φ = 26594040.

The previous prime is 87760339. The next prime is 87760399. The reversal of 87760398 is 89306778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87760399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664786 + ... + 664917.

It is an arithmetic number, because the mean of its divisors is an integer number (11967336).

Almost surely, 2^87760398 is an apocalyptic number.

87760398 is an abundant number, since it is smaller than the sum of its proper divisors (103716978).

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

87760398 is a wasteful number, since it uses less digits than its factorization.

87760398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329719.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 87760398 is about 9368.0519853383. The cubic root of 87760398 is about 444.3919617241.

The spelling of 87760398 in words is "eighty-seven million, seven hundred sixty thousand, three hundred ninety-eight".