920647275 has 12 divisors (see below), whose sum is σ = 1522136952. Its totient is φ = 491011840.

The previous prime is 920647271. The next prime is 920647297. The reversal of 920647275 is 572746029.

It is not a de Polignac number, because 920647275 - 2² = 920647271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (920647271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6137574 + ... + 6137723.

It is an arithmetic number, because the mean of its divisors is an integer number (126844746).

Almost surely, 2^920647275 is an apocalyptic number.

920647275 is a deficient number, since it is larger than the sum of its proper divisors (601489677).

920647275 is a wasteful number, since it uses less digits than its factorization.

920647275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12275310 (or 12275305 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 920647275 is about 30342.1699125161. The cubic root of 920647275 is about 972.8168642088.

The spelling of 920647275 in words is "nine hundred twenty million, six hundred forty-seven thousand, two hundred seventy-five".