70087283 has 4 divisors (see below), whose sum is σ = 80099760. Its totient is φ = 60074808.

The previous prime is 70087267. The next prime is 70087289. The reversal of 70087283 is 38278007.

It is a happy number.

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 70087283 - 2⁴ = 70087267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70087289) 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, 5006228 + ... + 5006241.

It is an arithmetic number, because the mean of its divisors is an integer number (20024940).

Almost surely, 2^70087283 is an apocalyptic number.

70087283 is a deficient number, since it is larger than the sum of its proper divisors (10012477).

70087283 is a wasteful number, since it uses less digits than its factorization.

70087283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012476.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 70087283 is about 8371.8147972826. The cubic root of 70087283 is about 412.2997531892.

The spelling of 70087283 in words is "seventy million, eighty-seven thousand, two hundred eighty-three".