620009157 has 8 divisors (see below), whose sum is σ = 827057376. Its totient is φ = 413150192.

The previous prime is 620009141. The next prime is 620009161. The reversal of 620009157 is 751900026.

620009157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620009157 - 2⁴ = 620009141 is a prime.

It is a super-2 number, since 2×620009157² = 768822709527701298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620009107) 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, 39483 + ... + 52904.

It is an arithmetic number, because the mean of its divisors is an integer number (103382172).

Almost surely, 2^620009157 is an apocalyptic number.

It is an amenable number.

620009157 is a deficient number, since it is larger than the sum of its proper divisors (207048219).

620009157 is a wasteful number, since it uses less digits than its factorization.

620009157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94627.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 620009157 is about 24899.9830722834. The cubic root of 620009157 is about 852.7060962598.

The spelling of 620009157 in words is "six hundred twenty million, nine thousand, one hundred fifty-seven".