920980655 has 16 divisors (see below), whose sum is σ = 1264564224. Its totient is φ = 630777120.

The previous prime is 920980649. The next prime is 920980667. The reversal of 920980655 is 556089029.

It is not a de Polignac number, because 920980655 - 2⁴ = 920980639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14960 + ... + 45450.

It is an arithmetic number, because the mean of its divisors is an integer number (79035264).

Almost surely, 2^920980655 is an apocalyptic number.

920980655 is a deficient number, since it is larger than the sum of its proper divisors (343583569).

920980655 is a wasteful number, since it uses less digits than its factorization.

920980655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31366.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 920980655 is about 30347.6630896021. The cubic root of 920980655 is about 972.9342738314.

The spelling of 920980655 in words is "nine hundred twenty million, nine hundred eighty thousand, six hundred fifty-five".