70730738 has 16 divisors (see below), whose sum is σ = 114863616. Its totient is φ = 32471760.

The previous prime is 70730731. The next prime is 70730741. The reversal of 70730738 is 83703707.

It is a junction number, because it is equal to n+sod(n) for n = 70730698 and 70730707.

It is not an unprimeable number, because it can be changed into a prime (70730731) 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, 2156 + ... + 12087.

It is an arithmetic number, because the mean of its divisors is an integer number (7178976).

Almost surely, 2^70730738 is an apocalyptic number.

70730738 is a deficient number, since it is larger than the sum of its proper divisors (44132878).

70730738 is a wasteful number, since it uses less digits than its factorization.

70730738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14449.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 70730738 is about 8410.1568356363. The cubic root of 70730738 is about 413.5576541354.

The spelling of 70730738 in words is "seventy million, seven hundred thirty thousand, seven hundred thirty-eight".