70719405 has 16 divisors (see below), whose sum is σ = 119807424. Its totient is φ = 35498240.

The previous prime is 70719377. The next prime is 70719409. The reversal of 70719405 is 50491707.

It is not a de Polignac number, because 70719405 - 2⁵ = 70719373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70719409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138411 + ... + 138920.

It is an arithmetic number, because the mean of its divisors is an integer number (7487964).

Almost surely, 2^70719405 is an apocalyptic number.

It is an amenable number.

70719405 is a deficient number, since it is larger than the sum of its proper divisors (49088019).

70719405 is a wasteful number, since it uses less digits than its factorization.

70719405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277356.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 70719405 is about 8409.4830399972. The cubic root of 70719405 is about 413.5355652041.

The spelling of 70719405 in words is "seventy million, seven hundred nineteen thousand, four hundred five".