830649797 has 2 divisors, whose sum is σ = 830649798. Its totient is φ = 830649796.

The previous prime is 830649773. The next prime is 830649811. The reversal of 830649797 is 797946038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554790916 + 275858881 = 23554^2 + 16609^2 .

It is a cyclic number.

It is not a de Polignac number, because 830649797 - 2²⁶ = 763540933 is a prime.

It is a super-2 number, since 2×830649797² = 1379958170512282418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830649737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415324898 + 415324899.

It is an arithmetic number, because the mean of its divisors is an integer number (415324899).

Almost surely, 2^830649797 is an apocalyptic number.

It is an amenable number.

830649797 is a deficient number, since it is larger than the sum of its proper divisors (1).

830649797 is an equidigital number, since it uses as much as digits as its factorization.

830649797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 830649797 is about 28820.9957669752. The cubic root of 830649797 is about 940.0248209079.

The spelling of 830649797 in words is "eight hundred thirty million, six hundred forty-nine thousand, seven hundred ninety-seven".