746821999 has 48 divisors (see below), whose sum is σ = 999841536. Its totient is φ = 541728000.

The previous prime is 746821987. The next prime is 746822003. The reversal of 746821999 is 999128647.

It is not a de Polignac number, because 746821999 - 2²¹ = 744724847 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746821909) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1862199 + ... + 1862599.

It is an arithmetic number, because the mean of its divisors is an integer number (20830032).

Almost surely, 2^746821999 is an apocalyptic number.

746821999 is a deficient number, since it is larger than the sum of its proper divisors (253019537).

746821999 is a wasteful number, since it uses less digits than its factorization.

746821999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 505 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 55.

The square root of 746821999 is about 27328.0441854151. The cubic root of 746821999 is about 907.2751882118.

The spelling of 746821999 in words is "seven hundred forty-six million, eight hundred twenty-one thousand, nine hundred ninety-nine".