351387 has 6 divisors (see below), whose sum is σ = 507572. Its totient is φ = 234252.

The previous prime is 351383. The next prime is 351391. The reversal of 351387 is 783153.

It is an interprime number because it is at equal distance from previous prime (351383) and next prime (351391).

It is not a de Polignac number, because 351387 - 2² = 351383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 351387.

It is not an unprimeable number, because it can be changed into a prime (351383) 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 5 ways as a sum of consecutive naturals, for example, 19513 + ... + 19530.

2³⁵¹³⁸⁷ is an apocalyptic number.

351387 is a deficient number, since it is larger than the sum of its proper divisors (156185).

351387 is a wasteful number, since it uses less digits than its factorization.

351387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39049 (or 39046 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 351387 is about 592.7790482127. The cubic root of 351387 is about 70.5659560817.

It can be divided in two parts, 3513 and 87, that added together give a square (3600 = 60²).

The spelling of 351387 in words is "three hundred fifty-one thousand, three hundred eighty-seven".