351421017 has 16 divisors (see below), whose sum is σ = 495452160. Its totient is φ = 220946832.

The previous prime is 351421003. The next prime is 351421033. The reversal of 351421017 is 710124153.

It is not a de Polignac number, because 351421017 - 2²⁶ = 284312153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (351421067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113 + ... + 26534.

It is an arithmetic number, because the mean of its divisors is an integer number (30965760).

Almost surely, 2^351421017 is an apocalyptic number.

It is an amenable number.

351421017 is a deficient number, since it is larger than the sum of its proper divisors (144031143).

351421017 is a wasteful number, since it uses less digits than its factorization.

351421017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27892.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 351421017 is about 18746.2267403336. The cubic root of 351421017 is about 705.6823311969.

It can be divided in two parts, 3514 and 21017, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 351421017 in words is "three hundred fifty-one million, four hundred twenty-one thousand, seventeen".