87214780 has 48 divisors (see below), whose sum is σ = 190439424. Its totient is φ = 33514560.

The previous prime is 87214759. The next prime is 87214783. The reversal of 87214780 is 8741278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87214783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100629 + ... + 101491.

It is an arithmetic number, because the mean of its divisors is an integer number (3967488).

Almost surely, 2^87214780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87214780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95219712).

87214780 is an abundant number, since it is smaller than the sum of its proper divisors (103224644).

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

87214780 is a wasteful number, since it uses less digits than its factorization.

87214780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 87214780 is about 9338.8853724628. The cubic root of 87214780 is about 443.4690986885.

The spelling of 87214780 in words is "eighty-seven million, two hundred fourteen thousand, seven hundred eighty".