630920355 has 16 divisors (see below), whose sum is σ = 1087124640. Its totient is φ = 310606848.

The previous prime is 630920347. The next prime is 630920363. The reversal of 630920355 is 553029036.

It is an interprime number because it is at equal distance from previous prime (630920347) and next prime (630920363).

It is not a de Polignac number, because 630920355 - 2³ = 630920347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617550 + ... + 1617939.

It is an arithmetic number, because the mean of its divisors is an integer number (67945290).

Almost surely, 2^630920355 is an apocalyptic number.

630920355 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

630920355 is a deficient number, since it is larger than the sum of its proper divisors (456204285).

630920355 is a wasteful number, since it uses less digits than its factorization.

630920355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235510.

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 630920355 is about 25118.1280154394. The cubic root of 630920355 is about 857.6791376346.

The spelling of 630920355 in words is "six hundred thirty million, nine hundred twenty thousand, three hundred fifty-five".