87246776 has 8 divisors (see below), whose sum is σ = 163587720. Its totient is φ = 43623384.

The previous prime is 87246767. The next prime is 87246779. The reversal of 87246776 is 67764278.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×87246776² = 15223999844788352, 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 87246776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87246779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5452916 + ... + 5452931.

It is an arithmetic number, because the mean of its divisors is an integer number (20448465).

Almost surely, 2^87246776 is an apocalyptic number.

It is an amenable number.

87246776 is a deficient number, since it is larger than the sum of its proper divisors (76340944).

87246776 is a wasteful number, since it uses less digits than its factorization.

87246776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10905853 (or 10905849 counting only the distinct ones).

The product of its digits is 790272, while the sum is 47.

The square root of 87246776 is about 9340.5982677771. The cubic root of 87246776 is about 443.5233230698.

The spelling of 87246776 in words is "eighty-seven million, two hundred forty-six thousand, seven hundred seventy-six".