620612969 has 8 divisors (see below), whose sum is σ = 624117312. Its totient is φ = 617118640.

The previous prime is 620612959. The next prime is 620612977. The reversal of 620612969 is 969216026.

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

It is a cyclic number.

It is not a de Polignac number, because 620612969 - 2⁴ = 620612953 is a prime.

It is a super-2 number, since 2×620612969² = 770320914581989922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620612929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145274 + ... + 149484.

It is an arithmetic number, because the mean of its divisors is an integer number (78014664).

Almost surely, 2^620612969 is an apocalyptic number.

It is an amenable number.

620612969 is a deficient number, since it is larger than the sum of its proper divisors (3504343).

620612969 is a wasteful number, since it uses less digits than its factorization.

620612969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 620612969 is about 24912.1048689186. The cubic root of 620612969 is about 852.9828164323.

The spelling of 620612969 in words is "six hundred twenty million, six hundred twelve thousand, nine hundred sixty-nine".