87726457 has 8 divisors (see below), whose sum is σ = 107971136. Its totient is φ = 69409872.

The previous prime is 87726433. The next prime is 87726461. The reversal of 87726457 is 75462778.

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

It is not a de Polignac number, because 87726457 - 2⁷ = 87726329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87726427) 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, 481923 + ... + 482104.

It is an arithmetic number, because the mean of its divisors is an integer number (13496392).

Almost surely, 2^87726457 is an apocalyptic number.

It is an amenable number.

87726457 is a deficient number, since it is larger than the sum of its proper divisors (20244679).

87726457 is a wasteful number, since it uses less digits than its factorization.

87726457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964047.

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

The square root of 87726457 is about 9366.2402809238. The cubic root of 87726457 is about 444.3346653703.

The spelling of 87726457 in words is "eighty-seven million, seven hundred twenty-six thousand, four hundred fifty-seven".