738989999 has 4 divisors (see below), whose sum is σ = 806170920. Its totient is φ = 671809080.

The previous prime is 738989981. The next prime is 738990019. The reversal of 738989999 is 999989837.

738989999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 738989999 - 2²⁴ = 722212783 is a prime.

It is a super-2 number, since 2×738989999² = 1092212437244040002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738989399) 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, 33590444 + ... + 33590465.

It is an arithmetic number, because the mean of its divisors is an integer number (201542730).

Almost surely, 2^738989999 is an apocalyptic number.

738989999 is a deficient number, since it is larger than the sum of its proper divisors (67180921).

738989999 is a wasteful number, since it uses less digits than its factorization.

738989999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67180920.

The product of its digits is 79361856, while the sum is 71.

The square root of 738989999 is about 27184.3704911480. The cubic root of 738989999 is about 904.0924732295.

The spelling of 738989999 in words is "seven hundred thirty-eight million, nine hundred eighty-nine thousand, nine hundred ninety-nine".