662770620 has 48 divisors (see below), whose sum is σ = 2061954720. Its totient is φ = 176738688.

The previous prime is 662770613. The next prime is 662770663. The reversal of 662770620 is 26077266.

662770620 is a `hidden beast` number, since 6 + 6 + 27 + 7 + 0 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613137 + ... + 614216.

It is an arithmetic number, because the mean of its divisors is an integer number (42957390).

Almost surely, 2^662770620 is an apocalyptic number.

662770620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662770620 is an abundant number, since it is smaller than the sum of its proper divisors (1399184100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662770620 is a wasteful number, since it uses less digits than its factorization.

662770620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227371 (or 1227363 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 662770620 is about 25744.3318033310. The cubic root of 662770620 is about 871.8753837436.

The spelling of 662770620 in words is "six hundred sixty-two million, seven hundred seventy thousand, six hundred twenty".