920780627 has 4 divisors (see below), whose sum is σ = 991609920. Its totient is φ = 849951336.

The previous prime is 920780617. The next prime is 920780687. The reversal of 920780627 is 726087029.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726087029 = 6469 ⋅112241.

It is not a de Polignac number, because 920780627 - 2¹⁸ = 920518483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920780617) 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, 35414627 + ... + 35414652.

It is an arithmetic number, because the mean of its divisors is an integer number (247902480).

Almost surely, 2^920780627 is an apocalyptic number.

920780627 is a deficient number, since it is larger than the sum of its proper divisors (70829293).

920780627 is a wasteful number, since it uses less digits than its factorization.

920780627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70829292.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 920780627 is about 30344.3673026807. The cubic root of 920780627 is about 972.8638314586.

The spelling of 920780627 in words is "nine hundred twenty million, seven hundred eighty thousand, six hundred twenty-seven".