87836426 has 4 divisors (see below), whose sum is σ = 131754642. Its totient is φ = 43918212.

The previous prime is 87836383. The next prime is 87836429. The reversal of 87836426 is 62463878.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66667225 + 21169201 = 8165^2 + 4601^2 .

It is not an unprimeable number, because it can be changed into a prime (87836429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21959105 + ... + 21959108.

Almost surely, 2^87836426 is an apocalyptic number.

87836426 is a deficient number, since it is larger than the sum of its proper divisors (43918216).

87836426 is a wasteful number, since it uses less digits than its factorization.

87836426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43918215.

The product of its digits is 387072, while the sum is 44.

The square root of 87836426 is about 9372.1089408948. The cubic root of 87836426 is about 444.5202522402.

The spelling of 87836426 in words is "eighty-seven million, eight hundred thirty-six thousand, four hundred twenty-six".