1834998397 has 16 divisors (see below), whose sum is σ = 2017935360. Its totient is φ = 1660876272.

The previous prime is 1834998367. The next prime is 1834998409. The reversal of 1834998397 is 7938994381.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1834998397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1834998307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473088 + ... + 476950.

It is an arithmetic number, because the mean of its divisors is an integer number (126120960).

Almost surely, 2^1834998397 is an apocalyptic number.

It is an amenable number.

1834998397 is a deficient number, since it is larger than the sum of its proper divisors (182936963).

1834998397 is a wasteful number, since it uses less digits than its factorization.

1834998397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4992.

The product of its digits is 11757312, while the sum is 61.

The square root of 1834998397 is about 42836.8812706994. The cubic root of 1834998397 is about 1224.2738213356.

The spelling of 1834998397 in words is "one billion, eight hundred thirty-four million, nine hundred ninety-eight thousand, three hundred ninety-seven".