70331285 has 4 divisors (see below), whose sum is σ = 84397548. Its totient is φ = 56265024.

The previous prime is 70331267. The next prime is 70331321. The reversal of 70331285 is 58213307.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15319396 + 55011889 = 3914^2 + 7417^2 .

It is a cyclic number.

It is not a de Polignac number, because 70331285 - 2⁸ = 70331029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7033124 + ... + 7033133.

It is an arithmetic number, because the mean of its divisors is an integer number (21099387).

Almost surely, 2^70331285 is an apocalyptic number.

It is an amenable number.

70331285 is a deficient number, since it is larger than the sum of its proper divisors (14066263).

70331285 is a wasteful number, since it uses less digits than its factorization.

70331285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14066262.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 70331285 is about 8386.3749618056. The cubic root of 70331285 is about 412.7776594039. Note that the first 3 decimals are identical.

The spelling of 70331285 in words is "seventy million, three hundred thirty-one thousand, two hundred eighty-five".