918269397 has 6 divisors (see below), whose sum is σ = 1326389142. Its totient is φ = 612179592.

The previous prime is 918269389. The next prime is 918269413. The reversal of 918269397 is 793962819.

It can be written as a sum of positive squares in only one way, i.e., 707613201 + 210656196 = 26601^2 + 14514^2 .

It is not a de Polignac number, because 918269397 - 2³ = 918269389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918269347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51014958 + ... + 51014975.

It is an arithmetic number, because the mean of its divisors is an integer number (221064857).

Almost surely, 2^918269397 is an apocalyptic number.

It is an amenable number.

918269397 is a deficient number, since it is larger than the sum of its proper divisors (408119745).

918269397 is a wasteful number, since it uses less digits than its factorization.

918269397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102029939 (or 102029936 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 918269397 is about 30302.9602019341. The cubic root of 918269397 is about 971.9786009870.

The spelling of 918269397 in words is "nine hundred eighteen million, two hundred sixty-nine thousand, three hundred ninety-seven".