70738719 has 4 divisors (see below), whose sum is σ = 94318296. Its totient is φ = 47159144.

The previous prime is 70738693. The next prime is 70738721. The reversal of 70738719 is 91783707.

It is a happy number.

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 70738719 - 2⁵ = 70738687 is a prime.

It is a super-2 number, since 2×70738719² = 10007932731521922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70738219) 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, 11789784 + ... + 11789789.

It is an arithmetic number, because the mean of its divisors is an integer number (23579574).

Almost surely, 2^70738719 is an apocalyptic number.

70738719 is a deficient number, since it is larger than the sum of its proper divisors (23579577).

70738719 is a wasteful number, since it uses less digits than its factorization.

70738719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23579576.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 70738719 is about 8410.6313080529. The cubic root of 70738719 is about 413.5732083324.

The spelling of 70738719 in words is "seventy million, seven hundred thirty-eight thousand, seven hundred nineteen".