830212357 has 8 divisors (see below), whose sum is σ = 946667736. Its totient is φ = 721270272.

The previous prime is 830212351. The next prime is 830212387. The reversal of 830212357 is 753212038.

It can be written as a sum of positive squares in 4 ways, for example, as 11737476 + 818474881 = 3426^2 + 28609^2 .

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 830212357 - 2³ = 830212349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830212351) 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, 1878088 + ... + 1878529.

It is an arithmetic number, because the mean of its divisors is an integer number (118333467).

Almost surely, 2^830212357 is an apocalyptic number.

It is an amenable number.

830212357 is a deficient number, since it is larger than the sum of its proper divisors (116455379).

830212357 is a wasteful number, since it uses less digits than its factorization.

830212357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756647.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 830212357 is about 28813.4058556083. The cubic root of 830212357 is about 939.8597787671.

The spelling of 830212357 in words is "eight hundred thirty million, two hundred twelve thousand, three hundred fifty-seven".