38479919 has 2 divisors, whose sum is σ = 38479920. Its totient is φ = 38479918.

The previous prime is 38479913. The next prime is 38479927. The reversal of 38479919 is 91997483.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38479919 is a prime.

It is a super-2 number, since 2×38479919² = 2961408332493122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38479913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19239959 + 19239960.

It is an arithmetic number, because the mean of its divisors is an integer number (19239960).

Almost surely, 2^38479919 is an apocalyptic number.

38479919 is a deficient number, since it is larger than the sum of its proper divisors (1).

38479919 is an equidigital number, since it uses as much as digits as its factorization.

38479919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 50.

The square root of 38479919 is about 6203.2184388429. The cubic root of 38479919 is about 337.6069535743.

The spelling of 38479919 in words is "thirty-eight million, four hundred seventy-nine thousand, nine hundred nineteen".