306898397 has 16 divisors (see below), whose sum is σ = 335865600. Its totient is φ = 278733312.

The previous prime is 306898373. The next prime is 306898409. The reversal of 306898397 is 793898603.

It is not a de Polignac number, because 306898397 - 2¹⁶ = 306832861 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 (306898307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250328 + ... + 251550.

It is an arithmetic number, because the mean of its divisors is an integer number (20991600).

Almost surely, 2^306898397 is an apocalyptic number.

It is an amenable number.

306898397 is a deficient number, since it is larger than the sum of its proper divisors (28967203).

306898397 is a wasteful number, since it uses less digits than its factorization.

306898397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 306898397 is about 17518.5158332548. The cubic root of 306898397 is about 674.5252423832.

The spelling of 306898397 in words is "three hundred six million, eight hundred ninety-eight thousand, three hundred ninety-seven".