342456487 has 4 divisors (see below), whose sum is σ = 342505800. Its totient is φ = 342407176.

The previous prime is 342456451. The next prime is 342456493. The reversal of 342456487 is 784654243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784654243 = 97 ⋅8089219.

It is a cyclic number.

It is not a de Polignac number, because 342456487 - 2²⁷ = 208238759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342456427) 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, 12112 + ... + 28837.

It is an arithmetic number, because the mean of its divisors is an integer number (85626450).

Almost surely, 2^342456487 is an apocalyptic number.

342456487 is a deficient number, since it is larger than the sum of its proper divisors (49313).

342456487 is an equidigital number, since it uses as much as digits as its factorization.

342456487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49312.

The product of its digits is 645120, while the sum is 43.

The square root of 342456487 is about 18505.5798882391. The cubic root of 342456487 is about 699.6300678000.

The spelling of 342456487 in words is "three hundred forty-two million, four hundred fifty-six thousand, four hundred eighty-seven".