87384790 has 16 divisors (see below), whose sum is σ = 157419360. Its totient is φ = 34925760.

The previous prime is 87384769. The next prime is 87384793. The reversal of 87384790 is 9748378.

It is a super-2 number, since 2×87384790² = 15272203046688200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87384790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87384793) 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, 13375 + ... + 18805.

It is an arithmetic number, because the mean of its divisors is an integer number (9838710).

Almost surely, 2^87384790 is an apocalyptic number.

87384790 is a deficient number, since it is larger than the sum of its proper divisors (70034570).

87384790 is a wasteful number, since it uses less digits than its factorization.

87384790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7047.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 87384790 is about 9347.9832049485. The cubic root of 87384790 is about 443.7570668715.

The spelling of 87384790 in words is "eighty-seven million, three hundred eighty-four thousand, seven hundred ninety".