70418739 has 16 divisors (see below), whose sum is σ = 94992128. Its totient is φ = 46399392.

The previous prime is 70418713. The next prime is 70418753. The reversal of 70418739 is 93781407.

It is not a de Polignac number, because 70418739 - 2⁵ = 70418707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70418697 and 70418706.

It is not an unprimeable number, because it can be changed into a prime (70418759) 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, 144354 + ... + 144840.

It is an arithmetic number, because the mean of its divisors is an integer number (5937008).

Almost surely, 2^70418739 is an apocalyptic number.

70418739 is a deficient number, since it is larger than the sum of its proper divisors (24573389).

70418739 is a wasteful number, since it uses less digits than its factorization.

70418739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 70418739 is about 8391.5873945279. The cubic root of 70418739 is about 412.9486791012.

Adding to 70418739 its sum of digits (39), we get a triangular number (70418778 = T₁₁₈₆₇).

The spelling of 70418739 in words is "seventy million, four hundred eighteen thousand, seven hundred thirty-nine".