971938926 has 80 divisors (see below), whose sum is σ = 2635449696. Its totient is φ = 261356544.

The previous prime is 971938873. The next prime is 971938927. The reversal of 971938926 is 629839179.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971938927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5931 + ... + 44486.

Almost surely, 2^971938926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 971938926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317724848).

971938926 is an abundant number, since it is smaller than the sum of its proper divisors (1663510770).

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

971938926 is a wasteful number, since it uses less digits than its factorization.

971938926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50455 (or 50446 counting only the distinct ones).

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

The square root of 971938926 is about 31175.9350461217. The cubic root of 971938926 is about 990.5574271243.

The spelling of 971938926 in words is "nine hundred seventy-one million, nine hundred thirty-eight thousand, nine hundred twenty-six".