70287407 has 4 divisors (see below), whose sum is σ = 72001776. Its totient is φ = 68573040.

The previous prime is 70287377. The next prime is 70287421. The reversal of 70287407 is 70478207.

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 70287407 - 2¹⁴ = 70271023 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 (70287307) 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, 857123 + ... + 857204.

It is an arithmetic number, because the mean of its divisors is an integer number (18000444).

Almost surely, 2^70287407 is an apocalyptic number.

70287407 is a deficient number, since it is larger than the sum of its proper divisors (1714369).

70287407 is a wasteful number, since it uses less digits than its factorization.

70287407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714368.

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 70287407 is about 8383.7585246714. The cubic root of 70287407 is about 412.6918008562.

The spelling of 70287407 in words is "seventy million, two hundred eighty-seven thousand, four hundred seven".