797397438 has 48 divisors (see below), whose sum is σ = 1688592528. Its totient is φ = 250876800.

The previous prime is 797397431. The next prime is 797397439. The reversal of 797397438 is 834793797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797397431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234720 + ... + 238092.

It is an arithmetic number, because the mean of its divisors is an integer number (35179011).

Almost surely, 2^797397438 is an apocalyptic number.

797397438 is an abundant number, since it is smaller than the sum of its proper divisors (891195090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797397438 is a wasteful number, since it uses less digits than its factorization.

797397438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481 (or 3450 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 57.

The square root of 797397438 is about 28238.2265377980. The cubic root of 797397438 is about 927.3100045533.

The spelling of 797397438 in words is "seven hundred ninety-seven million, three hundred ninety-seven thousand, four hundred thirty-eight".