19996377 has 8 divisors (see below), whose sum is σ = 26906880. Its totient is φ = 13208400.

The previous prime is 19996357. The next prime is 19996387. The reversal of 19996377 is 77369991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19996377 - 2⁶ = 19996313 is a prime.

It is a super-2 number, since 2×19996377² = 799710186252258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19996357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30249 + ... + 30902.

It is an arithmetic number, because the mean of its divisors is an integer number (3363360).

Almost surely, 2^19996377 is an apocalyptic number.

It is an amenable number.

19996377 is a deficient number, since it is larger than the sum of its proper divisors (6910503).

19996377 is a wasteful number, since it uses less digits than its factorization.

19996377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61263.

The product of its digits is 642978, while the sum is 51.

The square root of 19996377 is about 4471.7308729395. The cubic root of 19996377 is about 271.4253701113.

The spelling of 19996377 in words is "nineteen million, nine hundred ninety-six thousand, three hundred seventy-seven".