87772465 has 8 divisors (see below), whose sum is σ = 114902208. Its totient is φ = 63834480.

The previous prime is 87772463. The next prime is 87772483. The reversal of 87772465 is 56427778.

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

It is not a de Polignac number, because 87772465 - 2¹ = 87772463 is a prime.

It is a super-2 number, since 2×87772465² = 15408011224352450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87772463) 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, 797877 + ... + 797986.

It is an arithmetic number, because the mean of its divisors is an integer number (14362776).

Almost surely, 2^87772465 is an apocalyptic number.

It is an amenable number.

87772465 is a deficient number, since it is larger than the sum of its proper divisors (27129743).

87772465 is a wasteful number, since it uses less digits than its factorization.

87772465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595879.

The product of its digits is 658560, while the sum is 46.

The square root of 87772465 is about 9368.6960138538. The cubic root of 87772465 is about 444.4123286631.

The spelling of 87772465 in words is "eighty-seven million, seven hundred seventy-two thousand, four hundred sixty-five".