840375497 has 8 divisors (see below), whose sum is σ = 934214400. Its totient is φ = 750707280.

The previous prime is 840375443. The next prime is 840375521. The reversal of 840375497 is 794573048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 840375497 - 2¹⁶ = 840309961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (840375097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042247 + ... + 1043052.

It is an arithmetic number, because the mean of its divisors is an integer number (116776800).

Almost surely, 2^840375497 is an apocalyptic number.

It is an amenable number.

840375497 is a deficient number, since it is larger than the sum of its proper divisors (93838903).

840375497 is a wasteful number, since it uses less digits than its factorization.

840375497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085343.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 840375497 is about 28989.2307072816. The cubic root of 840375497 is about 943.6793687649.

The spelling of 840375497 in words is "eight hundred forty million, three hundred seventy-five thousand, four hundred ninety-seven".