87093090 has 192 divisors, whose sum is σ = 280713600. Its totient is φ = 19135872.

The previous prime is 87093067. The next prime is 87093113. The reversal of 87093090 is 9039078.

It is an interprime number because it is at equal distance from previous prime (87093067) and next prime (87093113).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 383557 + ... + 383783.

It is an arithmetic number, because the mean of its divisors is an integer number (1462050).

Almost surely, 2^87093090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87093090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140356800).

87093090 is an abundant number, since it is smaller than the sum of its proper divisors (193620510).

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

87093090 is a wasteful number, since it uses less digits than its factorization.

87093090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 87093090 is about 9332.3678667314. The cubic root of 87093090 is about 443.2627465335.

The spelling of 87093090 in words is "eighty-seven million, ninety-three thousand, ninety".