336896721 has 24 divisors (see below), whose sum is σ = 556647104. Its totient is φ = 192339360.

The previous prime is 336896671. The next prime is 336896783. The reversal of 336896721 is 127698633.

It is not a de Polignac number, because 336896721 - 2¹⁴ = 336880337 is a prime.

It is a super-2 number, since 2×336896721² = 226998801241103682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (336896621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108531 + ... + 111591.

Almost surely, 2^336896721 is an apocalyptic number.

It is an amenable number.

336896721 is a deficient number, since it is larger than the sum of its proper divisors (219750383).

336896721 is a wasteful number, since it uses less digits than its factorization.

336896721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821 (or 4818 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 336896721 is about 18354.7465523226. The cubic root of 336896721 is about 695.8232371665.

The spelling of 336896721 in words is "three hundred thirty-six million, eight hundred ninety-six thousand, seven hundred twenty-one".