87772652 has 12 divisors (see below), whose sum is σ = 167566056. Its totient is φ = 39896640.

The previous prime is 87772591. The next prime is 87772673. The reversal of 87772652 is 25627778.

It is a happy number.

It is a super-2 number, since 2×87772652² = 15408076878226208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1994833 = 87772652 / (8 + 7 + 7 + 7 + 2 + 6 + 5 + 2).

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, 997373 + ... + 997460.

It is an arithmetic number, because the mean of its divisors is an integer number (13963838).

Almost surely, 2^87772652 is an apocalyptic number.

It is an amenable number.

87772652 is a deficient number, since it is larger than the sum of its proper divisors (79793404).

87772652 is a wasteful number, since it uses less digits than its factorization.

87772652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994848 (or 1994846 counting only the distinct ones).

The product of its digits is 329280, while the sum is 44.

The square root of 87772652 is about 9368.7059938926. The cubic root of 87772652 is about 444.4126442710.

It can be divided in two parts, 877726 and 52, that added together give a palindrome (877778).

The spelling of 87772652 in words is "eighty-seven million, seven hundred seventy-two thousand, six hundred fifty-two".