345670487 has 4 divisors (see below), whose sum is σ = 350829816. Its totient is φ = 340511160.

The previous prime is 345670453. The next prime is 345670489. The reversal of 345670487 is 784076543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784076543 = 839 ⋅934537.

It is a cyclic number.

It is not a de Polignac number, because 345670487 - 2¹⁰ = 345669463 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 (345670489) 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, 2579564 + ... + 2579697.

It is an arithmetic number, because the mean of its divisors is an integer number (87707454).

Almost surely, 2^345670487 is an apocalyptic number.

345670487 is a deficient number, since it is larger than the sum of its proper divisors (5159329).

345670487 is an equidigital number, since it uses as much as digits as its factorization.

345670487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159328.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 345670487 is about 18592.2157635931. The cubic root of 345670487 is about 701.8119634738.

The spelling of 345670487 in words is "three hundred forty-five million, six hundred seventy thousand, four hundred eighty-seven".