797449536 has 140 divisors (see below), whose sum is σ = 2545943092. Its totient is φ = 245348352.

The previous prime is 797449519. The next prime is 797449553. The reversal of 797449536 is 635944797.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (797449519) and next prime (797449553).

It can be written as a sum of positive squares in 2 ways, for example, as 460359936 + 337089600 = 21456^2 + 18360^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61476 + ... + 73308.

Almost surely, 2^797449536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797449536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272971546).

797449536 is an abundant number, since it is smaller than the sum of its proper divisors (1748493556).

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

797449536 is a wasteful number, since it uses less digits than its factorization.

797449536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11870 (or 11851 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The square root of 797449536 is about 28239.1489956762. The cubic root of 797449536 is about 927.3301993947.

The spelling of 797449536 in words is "seven hundred ninety-seven million, four hundred forty-nine thousand, five hundred thirty-six".