87738722 has 8 divisors (see below), whose sum is σ = 131791296. Its totient is φ = 43808292.

The previous prime is 87738709. The next prime is 87738733. The reversal of 87738722 is 22783778.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28718 + ... + 31625.

It is an arithmetic number, because the mean of its divisors is an integer number (16473912).

Almost surely, 2^87738722 is an apocalyptic number.

87738722 is a deficient number, since it is larger than the sum of its proper divisors (44052574).

87738722 is a wasteful number, since it uses less digits than its factorization.

87738722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61072.

The product of its digits is 263424, while the sum is 44.

The square root of 87738722 is about 9366.8950031481. The cubic root of 87738722 is about 444.3553718211.

The spelling of 87738722 in words is "eighty-seven million, seven hundred thirty-eight thousand, seven hundred twenty-two".