87764441 has 8 divisors (see below), whose sum is σ = 90816000. Its totient is φ = 84726720.

The previous prime is 87764431. The next prime is 87764459. The reversal of 87764441 is 14446778.

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

It is a de Polignac number, because none of the positive numbers 2^k-87764441 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (87764431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10385 + ... + 16833.

It is an arithmetic number, because the mean of its divisors is an integer number (11352000).

Almost surely, 2^87764441 is an apocalyptic number.

It is an amenable number.

87764441 is a deficient number, since it is larger than the sum of its proper divisors (3051559).

87764441 is a wasteful number, since it uses less digits than its factorization.

87764441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6919.

The product of its digits is 150528, while the sum is 41.

The square root of 87764441 is about 9368.2677694438. The cubic root of 87764441 is about 444.3987857934.

The spelling of 87764441 in words is "eighty-seven million, seven hundred sixty-four thousand, four hundred forty-one".