70346897 has 4 divisors (see below), whose sum is σ = 70860516. Its totient is φ = 69833280.

The previous prime is 70346863. The next prime is 70346933. The reversal of 70346897 is 79864307.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26204161 + 44142736 = 5119^2 + 6644^2 .

It is a cyclic number.

It is not a de Polignac number, because 70346897 - 2⁸ = 70346641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70346807) 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, 256604 + ... + 256877.

It is an arithmetic number, because the mean of its divisors is an integer number (17715129).

Almost surely, 2^70346897 is an apocalyptic number.

It is an amenable number.

70346897 is a deficient number, since it is larger than the sum of its proper divisors (513619).

70346897 is a wasteful number, since it uses less digits than its factorization.

70346897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513618.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 70346897 is about 8387.3057056483. The cubic root of 70346897 is about 412.8081996680.

It can be divided in two parts, 7034 and 6897, that added together give a palindrome (13931).

The spelling of 70346897 in words is "seventy million, three hundred forty-six thousand, eight hundred ninety-seven".