672346019 has 4 divisors (see below), whose sum is σ = 672404040. Its totient is φ = 672288000.

The previous prime is 672346013. The next prime is 672346021. The reversal of 672346019 is 910643276.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672346019 is a prime.

It is a super-2 number, since 2×672346019² = 904098338530296722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672346013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009 + ... + 37010.

It is an arithmetic number, because the mean of its divisors is an integer number (168101010).

Almost surely, 2^672346019 is an apocalyptic number.

672346019 is a deficient number, since it is larger than the sum of its proper divisors (58021).

672346019 is a wasteful number, since it uses less digits than its factorization.

672346019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58020.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 672346019 is about 25929.6359210846. The cubic root of 672346019 is about 876.0541391691.

The spelling of 672346019 in words is "six hundred seventy-two million, three hundred forty-six thousand, nineteen".