981426087 has 6 divisors (see below), whose sum is σ = 1417615472. Its totient is φ = 654284052.

The previous prime is 981426053. The next prime is 981426107. The reversal of 981426087 is 780624189.

It is not a de Polignac number, because 981426087 - 2⁷ = 981425959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981426287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54523663 + ... + 54523680.

Almost surely, 2^981426087 is an apocalyptic number.

981426087 is a deficient number, since it is larger than the sum of its proper divisors (436189385).

981426087 is a wasteful number, since it uses less digits than its factorization.

981426087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109047349 (or 109047346 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 981426087 is about 31327.7207437758. The cubic root of 981426087 is about 993.7699629074.

The spelling of 981426087 in words is "nine hundred eighty-one million, four hundred twenty-six thousand, eighty-seven".