87774951 has 16 divisors (see below), whose sum is σ = 128193408. Its totient is φ = 52980000.

The previous prime is 87774917. The next prime is 87774983. The reversal of 87774951 is 15947778.

It is not a de Polignac number, because 87774951 - 2⁶ = 87774887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87774951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87774751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2985 + ... + 13581.

It is an arithmetic number, because the mean of its divisors is an integer number (8012088).

Almost surely, 2^87774951 is an apocalyptic number.

87774951 is a deficient number, since it is larger than the sum of its proper divisors (40418457).

87774951 is a wasteful number, since it uses less digits than its factorization.

87774951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10862.

The product of its digits is 493920, while the sum is 48.

The square root of 87774951 is about 9368.8286887956. The cubic root of 87774951 is about 444.4165243549.

The spelling of 87774951 in words is "eighty-seven million, seven hundred seventy-four thousand, nine hundred fifty-one".