887422391 has 4 divisors (see below), whose sum is σ = 891882000. Its totient is φ = 882962784.

The previous prime is 887422381. The next prime is 887422411. The reversal of 887422391 is 193224788.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 887422391 - 2¹⁸ = 887160247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887422351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229506 + ... + 2229903.

It is an arithmetic number, because the mean of its divisors is an integer number (222970500).

Almost surely, 2^887422391 is an apocalyptic number.

887422391 is a deficient number, since it is larger than the sum of its proper divisors (4459609).

887422391 is a wasteful number, since it uses less digits than its factorization.

887422391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459608.

The product of its digits is 193536, while the sum is 44.

The square root of 887422391 is about 29789.6356305343. The cubic root of 887422391 is about 960.9706584972.

The spelling of 887422391 in words is "eight hundred eighty-seven million, four hundred twenty-two thousand, three hundred ninety-one".