87290901 has 24 divisors (see below), whose sum is σ = 128005280. Its totient is φ = 57316896.

The previous prime is 87290873. The next prime is 87290909. The reversal of 87290901 is 10909278.

It is a happy number.

It is not a de Polignac number, because 87290901 - 2⁶ = 87290837 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87290909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230130 + ... + 230508.

Almost surely, 2^87290901 is an apocalyptic number.

It is an amenable number.

87290901 is a deficient number, since it is larger than the sum of its proper divisors (40714379).

87290901 is a wasteful number, since it uses less digits than its factorization.

87290901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 87290901 is about 9342.9599699453. The cubic root of 87290901 is about 443.5980810120.

The spelling of 87290901 in words is "eighty-seven million, two hundred ninety thousand, nine hundred one".