70433997 has 4 divisors (see below), whose sum is σ = 93912000. Its totient is φ = 46955996.

The previous prime is 70433989. The next prime is 70434019. The reversal of 70433997 is 79933407.

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 70433997 - 2³ = 70433989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70433897) 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, 11738997 + ... + 11739002.

It is an arithmetic number, because the mean of its divisors is an integer number (23478000).

Almost surely, 2^70433997 is an apocalyptic number.

It is an amenable number.

70433997 is a deficient number, since it is larger than the sum of its proper divisors (23478003).

70433997 is a wasteful number, since it uses less digits than its factorization.

70433997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23478002.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 70433997 is about 8392.4964700618. The cubic root of 70433997 is about 412.9785022042.

The spelling of 70433997 in words is "seventy million, four hundred thirty-three thousand, nine hundred ninety-seven".