87790622 has 8 divisors (see below), whose sum is σ = 131774472. Its totient is φ = 43865800.

The previous prime is 87790597. The next prime is 87790657. The reversal of 87790622 is 22609778.

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

It is a super-2 number, since 2×87790622² = 15414386622293768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87790622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10829 + ... + 17112.

It is an arithmetic number, because the mean of its divisors is an integer number (16471809).

Almost surely, 2^87790622 is an apocalyptic number.

87790622 is a deficient number, since it is larger than the sum of its proper divisors (43983850).

87790622 is a wasteful number, since it uses less digits than its factorization.

87790622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29514.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 87790622 is about 9369.6649886749. The cubic root of 87790622 is about 444.4429709164.

The spelling of 87790622 in words is "eighty-seven million, seven hundred ninety thousand, six hundred twenty-two".