372345397 has 2 divisors, whose sum is σ = 372345398. Its totient is φ = 372345396.

The previous prime is 372345383. The next prime is 372345481. The reversal of 372345397 is 793543273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325477681 + 46867716 = 18041^2 + 6846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-372345397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (372345307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186172698 + 186172699.

It is an arithmetic number, because the mean of its divisors is an integer number (186172699).

Almost surely, 2^372345397 is an apocalyptic number.

It is an amenable number.

372345397 is a deficient number, since it is larger than the sum of its proper divisors (1).

372345397 is an equidigital number, since it uses as much as digits as its factorization.

372345397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 43.

The square root of 372345397 is about 19296.2534446457. The cubic root of 372345397 is about 719.4191540965.

The spelling of 372345397 in words is "three hundred seventy-two million, three hundred forty-five thousand, three hundred ninety-seven".