620894 has 4 divisors (see below), whose sum is σ = 931344. Its totient is φ = 310446.

The previous prime is 620887. The next prime is 620909. The reversal of 620894 is 498026.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620894.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155222 + ... + 155225.

It is an arithmetic number, because the mean of its divisors is an integer number (232836).

2⁶²⁰⁸⁹⁴ is an apocalyptic number.

620894 is a deficient number, since it is larger than the sum of its proper divisors (310450).

620894 is a wasteful number, since it uses less digits than its factorization.

620894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310449.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 620894 is about 787.9682734730. The cubic root of 620894 is about 85.3111548536.

The spelling of 620894 in words is "six hundred twenty thousand, eight hundred ninety-four".