70073471 has 4 divisors (see below), whose sum is σ = 75463752. Its totient is φ = 64683192.

The previous prime is 70073467. The next prime is 70073519. The reversal of 70073471 is 17437007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17437007 = 7 ⋅2491001.

It is a cyclic number.

It is not a de Polignac number, because 70073471 - 2² = 70073467 is a prime.

It is a super-3 number, since 3×70073471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70073411) 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, 2695121 + ... + 2695146.

It is an arithmetic number, because the mean of its divisors is an integer number (18865938).

Almost surely, 2^70073471 is an apocalyptic number.

70073471 is a deficient number, since it is larger than the sum of its proper divisors (5390281).

70073471 is a wasteful number, since it uses less digits than its factorization.

70073471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390280.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 70073471 is about 8370.9898458904. The cubic root of 70073471 is about 412.2726676368.

The spelling of 70073471 in words is "seventy million, seventy-three thousand, four hundred seventy-one".