70008437 has 4 divisors (see below), whose sum is σ = 70158816. Its totient is φ = 69858060.

The previous prime is 70008413. The next prime is 70008439. The reversal of 70008437 is 73480007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70008437 - 2⁶ = 70008373 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 (70008439) 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, 74489 + ... + 75422.

It is an arithmetic number, because the mean of its divisors is an integer number (17539704).

Almost surely, 2^70008437 is an apocalyptic number.

It is an amenable number.

70008437 is a deficient number, since it is larger than the sum of its proper divisors (150379).

70008437 is a wasteful number, since it uses less digits than its factorization.

70008437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150378.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 70008437 is about 8367.1044573377. The cubic root of 70008437 is about 412.1450870700.

The spelling of 70008437 in words is "seventy million, eight thousand, four hundred thirty-seven".