70749407 has 8 divisors (see below), whose sum is σ = 74659200. Its totient is φ = 66858264.

The previous prime is 70749397. The next prime is 70749431. The reversal of 70749407 is 70494707.

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

It is not a de Polignac number, because 70749407 - 2⁴ = 70749391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70749487) 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, 3518 + ... + 12404.

It is an arithmetic number, because the mean of its divisors is an integer number (9332400).

Almost surely, 2^70749407 is an apocalyptic number.

70749407 is a deficient number, since it is larger than the sum of its proper divisors (3909793).

70749407 is a wasteful number, since it uses less digits than its factorization.

70749407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 70749407 is about 8411.2666703654. The cubic root of 70749407 is about 413.5940363783.

The spelling of 70749407 in words is "seventy million, seven hundred forty-nine thousand, four hundred seven".