70431433 has 4 divisors (see below), whose sum is σ = 70460368. Its totient is φ = 70402500.

The previous prime is 70431421. The next prime is 70431437. The reversal of 70431433 is 33413407.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33413407 = 641 ⋅52127.

It is a cyclic number.

It is not a de Polignac number, because 70431433 - 2²¹ = 68334281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70431398 and 70431407.

It is not an unprimeable number, because it can be changed into a prime (70431437) 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, 10443 + ... + 15808.

It is an arithmetic number, because the mean of its divisors is an integer number (17615092).

Almost surely, 2^70431433 is an apocalyptic number.

It is an amenable number.

70431433 is a deficient number, since it is larger than the sum of its proper divisors (28935).

70431433 is a wasteful number, since it uses less digits than its factorization.

70431433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28934.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 70431433 is about 8392.3437131710. The cubic root of 70431433 is about 412.9734909418.

The spelling of 70431433 in words is "seventy million, four hundred thirty-one thousand, four hundred thirty-three".