87655426 has 4 divisors (see below), whose sum is σ = 131483142. Its totient is φ = 43827712.

The previous prime is 87655397. The next prime is 87655427. The reversal of 87655426 is 62455678.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62455678 = 2 ⋅31227839.

It can be written as a sum of positive squares in only one way, i.e., 80120401 + 7535025 = 8951^2 + 2745^2 .

It is not an unprimeable number, because it can be changed into a prime (87655427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21913855 + ... + 21913858.

Almost surely, 2^87655426 is an apocalyptic number.

87655426 is a deficient number, since it is larger than the sum of its proper divisors (43827716).

87655426 is a wasteful number, since it uses less digits than its factorization.

87655426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43827715.

The product of its digits is 403200, while the sum is 43.

The square root of 87655426 is about 9362.4476500539. The cubic root of 87655426 is about 444.2147089404.

The spelling of 87655426 in words is "eighty-seven million, six hundred fifty-five thousand, four hundred twenty-six".