1397546907 has 16 divisors (see below), whose sum is σ = 1959268608. Its totient is φ = 884380640.

The previous prime is 1397546873. The next prime is 1397546921. The reversal of 1397546907 is 7096457931.

It is a cyclic number.

It is not a de Polignac number, because 1397546907 - 2⁸ = 1397546651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1397546907.

It is not an unprimeable number, because it can be changed into a prime (1397546947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68268 + ... + 86345.

It is an arithmetic number, because the mean of its divisors is an integer number (122454288).

Almost surely, 2^1397546907 is an apocalyptic number.

1397546907 is a deficient number, since it is larger than the sum of its proper divisors (561721701).

1397546907 is a wasteful number, since it uses less digits than its factorization.

1397546907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154770.

The product of its (nonzero) digits is 1428840, while the sum is 51.

The square root of 1397546907 is about 37383.7786613392. The cubic root of 1397546907 is about 1118.0351676987.

The spelling of 1397546907 in words is "one billion, three hundred ninety-seven million, five hundred forty-six thousand, nine hundred seven".