70730637 has 8 divisors (see below), whose sum is σ = 94829280. Its totient is φ = 46892880.

The previous prime is 70730593. The next prime is 70730641. The reversal of 70730637 is 73603707.

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

It is not a de Polignac number, because 70730637 - 2⁶ = 70730573 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 70730598 and 70730607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70730137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64587 + ... + 65672.

It is an arithmetic number, because the mean of its divisors is an integer number (11853660).

Almost surely, 2^70730637 is an apocalyptic number.

It is an amenable number.

70730637 is a deficient number, since it is larger than the sum of its proper divisors (24098643).

70730637 is a wasteful number, since it uses less digits than its factorization.

70730637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130443.

The product of its (nonzero) digits is 18522, while the sum is 33.

The square root of 70730637 is about 8410.1508309899. The cubic root of 70730637 is about 413.5574572887.

The spelling of 70730637 in words is "seventy million, seven hundred thirty thousand, six hundred thirty-seven".