87049340 has 48 divisors (see below), whose sum is σ = 209459712. Its totient is φ = 29768256.

The previous prime is 87049331. The next prime is 87049343. The reversal of 87049340 is 4394078.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 87049340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87049343) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 89537 + ... + 90503.

It is an arithmetic number, because the mean of its divisors is an integer number (4363744).

Almost surely, 2^87049340 is an apocalyptic number.

It is an amenable number.

87049340 is an abundant number, since it is smaller than the sum of its proper divisors (122410372).

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

87049340 is a wasteful number, since it uses less digits than its factorization.

87049340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 87049340 is about 9330.0235798201. The cubic root of 87049340 is about 443.1885118141.

The spelling of 87049340 in words is "eighty-seven million, forty-nine thousand, three hundred forty".