70613071 has 4 divisors (see below), whose sum is σ = 72890944. Its totient is φ = 68335200.

The previous prime is 70613047. The next prime is 70613083. The reversal of 70613071 is 17031607.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70613071 - 2²⁵ = 37058639 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 (70613021) 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, 1138890 + ... + 1138951.

It is an arithmetic number, because the mean of its divisors is an integer number (18222736).

Almost surely, 2^70613071 is an apocalyptic number.

70613071 is a deficient number, since it is larger than the sum of its proper divisors (2277873).

70613071 is a wasteful number, since it uses less digits than its factorization.

70613071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277872.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 70613071 is about 8403.1583943182. The cubic root of 70613071 is about 413.3281966208.

Adding to 70613071 its reverse (17031607), we get a palindrome (87644678).

The spelling of 70613071 in words is "seventy million, six hundred thirteen thousand, seventy-one".