87790650 has 24 divisors (see below), whose sum is σ = 217721184. Its totient is φ = 23410800.

The previous prime is 87790597. The next prime is 87790657. The reversal of 87790650 is 5609778.

It is not an unprimeable number, because it can be changed into a prime (87790657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292486 + ... + 292785.

It is an arithmetic number, because the mean of its divisors is an integer number (9071716).

Almost surely, 2^87790650 is an apocalyptic number.

87790650 is an abundant number, since it is smaller than the sum of its proper divisors (129930534).

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

87790650 is a wasteful number, since it uses less digits than its factorization.

87790650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585286 (or 585281 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 87790650 is about 9369.6664828584. Note that the first 3 decimals coincide. The cubic root of 87790650 is about 444.4430181667.

The spelling of 87790650 in words is "eighty-seven million, seven hundred ninety thousand, six hundred fifty".