340972613 has 4 divisors (see below), whose sum is σ = 358918560. Its totient is φ = 323026668.

The previous prime is 340972607. The next prime is 340972637. The reversal of 340972613 is 316279043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 316279043 = 41 ⋅7714123.

It is a cyclic number.

It is not a de Polignac number, because 340972613 - 2¹² = 340968517 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 (340972603) 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, 8972945 + ... + 8972982.

It is an arithmetic number, because the mean of its divisors is an integer number (89729640).

Almost surely, 2^340972613 is an apocalyptic number.

It is an amenable number.

340972613 is a deficient number, since it is larger than the sum of its proper divisors (17945947).

340972613 is a wasteful number, since it uses less digits than its factorization.

340972613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17945946.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 340972613 is about 18465.4437531298. The cubic root of 340972613 is about 698.6180988929.

The spelling of 340972613 in words is "three hundred forty million, nine hundred seventy-two thousand, six hundred thirteen".