34870397 has 4 divisors (see below), whose sum is σ = 34911036. Its totient is φ = 34829760.

The previous prime is 34870393. The next prime is 34870447. The reversal of 34870397 is 79307843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79307843 = 19 ⋅4174097.

It can be written as a sum of positive squares in 2 ways, for example, as 15413476 + 19456921 = 3926^2 + 4411^2 .

It is a cyclic number.

It is not a de Polignac number, because 34870397 - 2² = 34870393 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 (34870393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19004 + ... + 20757.

It is an arithmetic number, because the mean of its divisors is an integer number (8727759).

Almost surely, 2^34870397 is an apocalyptic number.

It is an amenable number.

34870397 is a deficient number, since it is larger than the sum of its proper divisors (40639).

34870397 is an equidigital number, since it uses as much as digits as its factorization.

34870397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40638.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 34870397 is about 5905.1161715922. The cubic root of 34870397 is about 326.7023792461.

The spelling of 34870397 in words is "thirty-four million, eight hundred seventy thousand, three hundred ninety-seven".