87049470 has 16 divisors (see below), whose sum is σ = 208918800. Its totient is φ = 23213184.

The previous prime is 87049463. The next prime is 87049477. The reversal of 87049470 is 7494078.

It is an interprime number because it is at equal distance from previous prime (87049463) and next prime (87049477).

It is a super-2 number, since 2×87049470² = 15155220454561800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87049477) 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 7 ways as a sum of consecutive naturals, for example, 1450795 + ... + 1450854.

It is an arithmetic number, because the mean of its divisors is an integer number (13057425).

Almost surely, 2^87049470 is an apocalyptic number.

87049470 is an abundant number, since it is smaller than the sum of its proper divisors (121869330).

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

87049470 is a wasteful number, since it uses less digits than its factorization.

87049470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901659.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 87049470 is about 9330.0305465738. The cubic root of 87049470 is about 443.1887324341.

The spelling of 87049470 in words is "eighty-seven million, forty-nine thousand, four hundred seventy".