19672039 has 2 divisors, whose sum is σ = 19672040. Its totient is φ = 19672038.

The previous prime is 19672013. The next prime is 19672091. The reversal of 19672039 is 93027691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19672039 - 2⁵ = 19672007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19671989 and 19672007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19670039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9836019 + 9836020.

It is an arithmetic number, because the mean of its divisors is an integer number (9836020).

Almost surely, 2^19672039 is an apocalyptic number.

19672039 is a deficient number, since it is larger than the sum of its proper divisors (1).

19672039 is an equidigital number, since it uses as much as digits as its factorization.

19672039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 19672039 is about 4435.3172378084. The cubic root of 19672039 is about 269.9498718095.

The spelling of 19672039 in words is "nineteen million, six hundred seventy-two thousand, thirty-nine".