70507973 has 4 divisors (see below), whose sum is σ = 70524960. Its totient is φ = 70490988.

The previous prime is 70507951. The next prime is 70507979. The reversal of 70507973 is 37970507.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 70507973 - 2⁶ = 70507909 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 (70507979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336 + ... + 12102.

It is an arithmetic number, because the mean of its divisors is an integer number (17631240).

Almost surely, 2^70507973 is an apocalyptic number.

It is an amenable number.

70507973 is a deficient number, since it is larger than the sum of its proper divisors (16987).

70507973 is an equidigital number, since it uses as much as digits as its factorization.

70507973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16986.

The product of its (nonzero) digits is 46305, while the sum is 38.

The square root of 70507973 is about 8396.9025836912. The cubic root of 70507973 is about 413.1230337733.

The spelling of 70507973 in words is "seventy million, five hundred seven thousand, nine hundred seventy-three".