87266278 has 64 divisors (see below), whose sum is σ = 162777600. Its totient is φ = 34594560.

The previous prime is 87266273. The next prime is 87266299.

87266278 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87266273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278650 + ... + 278962.

It is an arithmetic number, because the mean of its divisors is an integer number (2543400).

Almost surely, 2^87266278 is an apocalyptic number.

87266278 is a deficient number, since it is larger than the sum of its proper divisors (75511322).

87266278 is a wasteful number, since it uses less digits than its factorization.

87266278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its digits is 451584, while the sum is 46.

The square root of 87266278 is about 9341.6421468605. The cubic root of 87266278 is about 443.5563670700.

The spelling of 87266278 in words is "eighty-seven million, two hundred sixty-six thousand, two hundred seventy-eight".