70448739 has 8 divisors (see below), whose sum is σ = 93998352. Its totient is φ = 46932480.

The previous prime is 70448711. The next prime is 70448761. The reversal of 70448739 is 93784407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70448739 - 2⁹ = 70448227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70448739.

It is not an unprimeable number, because it can be changed into a prime (70448779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902 + ... + 12219.

It is an arithmetic number, because the mean of its divisors is an integer number (11749794).

Almost surely, 2^70448739 is an apocalyptic number.

70448739 is a deficient number, since it is larger than the sum of its proper divisors (23549613).

70448739 is a wasteful number, since it uses less digits than its factorization.

70448739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16677.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 70448739 is about 8393.3747086616. The cubic root of 70448739 is about 413.0073126491.

The spelling of 70448739 in words is "seventy million, four hundred forty-eight thousand, seven hundred thirty-nine".