620634355 has 8 divisors (see below), whose sum is σ = 812466864. Its totient is φ = 451370400.

The previous prime is 620634341. The next prime is 620634361. The reversal of 620634355 is 553436026.

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

It is not a de Polignac number, because 620634355 - 2¹³ = 620626163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620634355.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5642076 + ... + 5642185.

It is an arithmetic number, because the mean of its divisors is an integer number (101558358).

Almost surely, 2^620634355 is an apocalyptic number.

620634355 is a deficient number, since it is larger than the sum of its proper divisors (191832509).

620634355 is a wasteful number, since it uses less digits than its factorization.

620634355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284277.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 620634355 is about 24912.5340943068. The cubic root of 620634355 is about 852.9926141011.

The spelling of 620634355 in words is "six hundred twenty million, six hundred thirty-four thousand, three hundred fifty-five".