87150761 has 8 divisors (see below), whose sum is σ = 88730184. Its totient is φ = 85576320.

The previous prime is 87150757. The next prime is 87150793. The reversal of 87150761 is 16705178.

It can be written as a sum of positive squares in 4 ways, for example, as 18011536 + 69139225 = 4244^2 + 8315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87150761 - 2² = 87150757 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87150961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60101 + ... + 61533.

It is an arithmetic number, because the mean of its divisors is an integer number (11091273).

Almost surely, 2^87150761 is an apocalyptic number.

It is an amenable number.

87150761 is a deficient number, since it is larger than the sum of its proper divisors (1579423).

87150761 is a wasteful number, since it uses less digits than its factorization.

87150761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 87150761 is about 9335.4571928749. The cubic root of 87150761 is about 443.3605643414.

The spelling of 87150761 in words is "eighty-seven million, one hundred fifty thousand, seven hundred sixty-one".