43245397 has 4 divisors (see below), whose sum is σ = 46571980. Its totient is φ = 39918816.

The previous prime is 43245379. The next prime is 43245431. The reversal of 43245397 is 79354234.

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 7890481 + 35354916 = 2809^2 + 5946^2 .

It is a cyclic number.

It is not a de Polignac number, because 43245397 - 2⁷ = 43245269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43245337) 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, 1663272 + ... + 1663297.

It is an arithmetic number, because the mean of its divisors is an integer number (11642995).

Almost surely, 2^43245397 is an apocalyptic number.

It is an amenable number.

43245397 is a deficient number, since it is larger than the sum of its proper divisors (3326583).

43245397 is a wasteful number, since it uses less digits than its factorization.

43245397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326582.

The product of its digits is 90720, while the sum is 37.

The square root of 43245397 is about 6576.1232500615. The cubic root of 43245397 is about 351.0049944771.

The spelling of 43245397 in words is "forty-three million, two hundred forty-five thousand, three hundred ninety-seven".