87786546 has 8 divisors (see below), whose sum is σ = 175573104. Its totient is φ = 29262180.

The previous prime is 87786541. The next prime is 87786547. The reversal of 87786546 is 64568778.

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

87786546 is an admirable number.

It is a super-2 number, since 2×87786546² = 15412955317220232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87786541) 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, 7315540 + ... + 7315551.

It is an arithmetic number, because the mean of its divisors is an integer number (21946638).

Almost surely, 2^87786546 is an apocalyptic number.

87786546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87786546 is a wasteful number, since it uses less digits than its factorization.

87786546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14631096.

The product of its digits is 2257920, while the sum is 51.

The square root of 87786546 is about 9369.4474757053. The cubic root of 87786546 is about 444.4360925143.

The spelling of 87786546 in words is "eighty-seven million, seven hundred eighty-six thousand, five hundred forty-six".