673997019 has 8 divisors (see below), whose sum is σ = 912075840. Its totient is φ = 442624776.

The previous prime is 673996993. The next prime is 673997021. The reversal of 673997019 is 910799376.

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

It is not a de Polignac number, because 673997019 - 2⁵ = 673996987 is a prime.

It is a super-2 number, since 2×673997019² = 908543963241772722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (673997059) 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, 1676409 + ... + 1676810.

It is an arithmetic number, because the mean of its divisors is an integer number (114009480).

Almost surely, 2^673997019 is an apocalyptic number.

673997019 is a deficient number, since it is larger than the sum of its proper divisors (238078821).

673997019 is a wasteful number, since it uses less digits than its factorization.

673997019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353289.

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

The square root of 673997019 is about 25961.4525595160. The cubic root of 673997019 is about 876.7706269429.

The spelling of 673997019 in words is "six hundred seventy-three million, nine hundred ninety-seven thousand, nineteen".