797138370 has 288 divisors, whose sum is σ = 2612113920. Its totient is φ = 167650560.

The previous prime is 797138351. The next prime is 797138387. The reversal of 797138370 is 73831797.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2941335 + ... + 2941605.

It is an arithmetic number, because the mean of its divisors is an integer number (9069840).

Almost surely, 2^797138370 is an apocalyptic number.

797138370 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 797138370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306056960).

797138370 is an abundant number, since it is smaller than the sum of its proper divisors (1814975550).

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

797138370 is a wasteful number, since it uses less digits than its factorization.

797138370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 797138370 is about 28233.6389790618. The cubic root of 797138370 is about 927.2095684936.

The spelling of 797138370 in words is "seven hundred ninety-seven million, one hundred thirty-eight thousand, three hundred seventy".