620258403 has 4 divisors (see below), whose sum is σ = 827011208. Its totient is φ = 413505600.

The previous prime is 620258381. The next prime is 620258423. The reversal of 620258403 is 304852026.

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

It is not a de Polignac number, because 620258403 - 2⁸ = 620258147 is a prime.

It is a super-2 number, since 2×620258403² = 769440972984220818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620258423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103376398 + ... + 103376403.

It is an arithmetic number, because the mean of its divisors is an integer number (206752802).

Almost surely, 2^620258403 is an apocalyptic number.

620258403 is a deficient number, since it is larger than the sum of its proper divisors (206752805).

620258403 is a wasteful number, since it uses less digits than its factorization.

620258403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206752804.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 620258403 is about 24904.9875125446. The cubic root of 620258403 is about 852.8203446317.

The spelling of 620258403 in words is "six hundred twenty million, two hundred fifty-eight thousand, four hundred three".