621053354 has 8 divisors (see below), whose sum is σ = 936727428. Its totient is φ = 308810880.

The previous prime is 621053353. The next prime is 621053387. The reversal of 621053354 is 453350126.

It can be written as a sum of positive squares in 2 ways, for example, as 425473129 + 195580225 = 20627^2 + 13985^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (621053353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857447 + ... + 858170.

Almost surely, 2^621053354 is an apocalyptic number.

621053354 is a deficient number, since it is larger than the sum of its proper divisors (315674074).

621053354 is a wasteful number, since it uses less digits than its factorization.

621053354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715800.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 621053354 is about 24920.9420768959. The cubic root of 621053354 is about 853.1845266984.

The spelling of 621053354 in words is "six hundred twenty-one million, fifty-three thousand, three hundred fifty-four".