738670819 has 2 divisors, whose sum is σ = 738670820. Its totient is φ = 738670818.

The previous prime is 738670789. The next prime is 738670831. The reversal of 738670819 is 918076837.

It is a strong prime.

It is an emirp because it is prime and its reverse (918076837) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-738670819 is a prime.

It is a super-2 number, since 2×738670819² = 1091269157684261522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (738670319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369335409 + 369335410.

It is an arithmetic number, because the mean of its divisors is an integer number (369335410).

Almost surely, 2^738670819 is an apocalyptic number.

738670819 is a deficient number, since it is larger than the sum of its proper divisors (1).

738670819 is an equidigital number, since it uses as much as digits as its factorization.

738670819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 738670819 is about 27178.4992043343. The cubic root of 738670819 is about 903.9622911379.

The spelling of 738670819 in words is "seven hundred thirty-eight million, six hundred seventy thousand, eight hundred nineteen".