840119797 has 4 divisors (see below), whose sum is σ = 916494336. Its totient is φ = 763745260.

The previous prime is 840119773. The next prime is 840119831. The reversal of 840119797 is 797911048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-840119797 is a prime.

It is a super-2 number, since 2×840119797² = 1411602546622642418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840119737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38187253 + ... + 38187274.

It is an arithmetic number, because the mean of its divisors is an integer number (229123584).

Almost surely, 2^840119797 is an apocalyptic number.

It is an amenable number.

840119797 is a deficient number, since it is larger than the sum of its proper divisors (76374539).

840119797 is a wasteful number, since it uses less digits than its factorization.

840119797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76374538.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 840119797 is about 28984.8201132938. The cubic root of 840119797 is about 943.5836483427.

The spelling of 840119797 in words is "eight hundred forty million, one hundred nineteen thousand, seven hundred ninety-seven".