621023034 has 8 divisors (see below), whose sum is σ = 1242046080. Its totient is φ = 207007676.

The previous prime is 621023017. The next prime is 621023041. The reversal of 621023034 is 430320126.

It is a happy number.

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

621023034 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 621023034.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51751914 + ... + 51751925.

It is an arithmetic number, because the mean of its divisors is an integer number (155255760).

Almost surely, 2^621023034 is an apocalyptic number.

621023034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

621023034 is a wasteful number, since it uses less digits than its factorization.

621023034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103503844.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 621023034 is about 24920.3337457587. Note that the first 3 decimals coincide. The cubic root of 621023034 is about 853.1706422360.

The spelling of 621023034 in words is "six hundred twenty-one million, twenty-three thousand, thirty-four".