790821494 has 4 divisors (see below), whose sum is σ = 1186232244. Its totient is φ = 395410746.

The previous prime is 790821491. The next prime is 790821511. The reversal of 790821494 is 494128097.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (790821491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197705372 + ... + 197705375.

It is an arithmetic number, because the mean of its divisors is an integer number (296558061).

Almost surely, 2^790821494 is an apocalyptic number.

790821494 is a deficient number, since it is larger than the sum of its proper divisors (395410750).

790821494 is a wasteful number, since it uses less digits than its factorization.

790821494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395410749.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 790821494 is about 28121.5485704468. The cubic root of 790821494 is about 924.7538644842.

The spelling of 790821494 in words is "seven hundred ninety million, eight hundred twenty-one thousand, four hundred ninety-four".