345456787 has 12 divisors (see below), whose sum is σ = 386979120. Its totient is φ = 307882848.

The previous prime is 345456767. The next prime is 345456799. The reversal of 345456787 is 787654543.

345456787 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a de Polignac number, because none of the positive numbers 2^k-345456787 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 345456787.

It is not an unprimeable number, because it can be changed into a prime (345456767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30343 + ... + 40144.

It is an arithmetic number, because the mean of its divisors is an integer number (32248260).

Almost surely, 2^345456787 is an apocalyptic number.

345456787 is a deficient number, since it is larger than the sum of its proper divisors (41522333).

345456787 is a wasteful number, since it uses less digits than its factorization.

345456787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70542 (or 70529 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 49.

The square root of 345456787 is about 18586.4678462585. The cubic root of 345456787 is about 701.6673092061.

The spelling of 345456787 in words is "three hundred forty-five million, four hundred fifty-six thousand, seven hundred eighty-seven".