620451353 has 4 divisors (see below), whose sum is σ = 620863488. Its totient is φ = 620039220.

The previous prime is 620451331. The next prime is 620451361. The reversal of 620451353 is 353154026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 620451353 - 2¹⁸ = 620189209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620451323) 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, 203801 + ... + 206822.

It is an arithmetic number, because the mean of its divisors is an integer number (155215872).

Almost surely, 2^620451353 is an apocalyptic number.

It is an amenable number.

620451353 is a deficient number, since it is larger than the sum of its proper divisors (412135).

620451353 is a wasteful number, since it uses less digits than its factorization.

620451353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412134.

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

The square root of 620451353 is about 24908.8609334108. The cubic root of 620451353 is about 852.9087672551.

The spelling of 620451353 in words is "six hundred twenty million, four hundred fifty-one thousand, three hundred fifty-three".