87422331 has 8 divisors (see below), whose sum is σ = 116612944. Its totient is φ = 58256640.

The previous prime is 87422261. The next prime is 87422339. The reversal of 87422331 is 13322478.

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

It is not a de Polignac number, because 87422331 - 2⁹ = 87421819 is a prime.

It is a super-2 number, since 2×87422331² = 15285327914947122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87422339) 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, 4695 + ... + 14031.

It is an arithmetic number, because the mean of its divisors is an integer number (14576618).

Almost surely, 2^87422331 is an apocalyptic number.

87422331 is a deficient number, since it is larger than the sum of its proper divisors (29190613).

87422331 is a wasteful number, since it uses less digits than its factorization.

87422331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12461.

The product of its digits is 8064, while the sum is 30.

The square root of 87422331 is about 9349.9909625625. The cubic root of 87422331 is about 443.8206046222.

The spelling of 87422331 in words is "eighty-seven million, four hundred twenty-two thousand, three hundred thirty-one".