87211404 has 60 divisors (see below), whose sum is σ = 260564304. Its totient is φ = 24916896.

The previous prime is 87211391. The next prime is 87211427. The reversal of 87211404 is 40411278.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16959 + ... + 21494.

Almost surely, 2^87211404 is an apocalyptic number.

87211404 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

87211404 is an abundant number, since it is smaller than the sum of its proper divisors (173352900).

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

87211404 is a wasteful number, since it uses less digits than its factorization.

87211404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38476 (or 38465 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 87211404 is about 9338.7046210917. The cubic root of 87211404 is about 443.4633765277.

The spelling of 87211404 in words is "eighty-seven million, two hundred eleven thousand, four hundred four".