920626690 has 8 divisors (see below), whose sum is σ = 1657128060. Its totient is φ = 368250672.

The previous prime is 920626673. The next prime is 920626691. The reversal of 920626690 is 96626029.

It can be written as a sum of positive squares in 2 ways, for example, as 849780801 + 70845889 = 29151^2 + 8417^2 .

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

It is a super-2 number, since 2×920626690² = 1695107004680712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (920626691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46031325 + ... + 46031344.

Almost surely, 2^920626690 is an apocalyptic number.

920626690 is a deficient number, since it is larger than the sum of its proper divisors (736501370).

920626690 is a wasteful number, since it uses less digits than its factorization.

920626690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92062676.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 920626690 is about 30341.8306962517. The cubic root of 920626690 is about 972.8096136635.

The spelling of 920626690 in words is "nine hundred twenty million, six hundred twenty-six thousand, six hundred ninety".