70654231 has 4 divisors (see below), whose sum is σ = 70678552. Its totient is φ = 70629912.

The previous prime is 70654223. The next prime is 70654249. The reversal of 70654231 is 13245607.

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 70654231 - 2³ = 70654223 is a prime.

It is a super-2 number, since 2×70654231² = 9984040716402722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70654231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70654271) 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, 7101 + ... + 13846.

It is an arithmetic number, because the mean of its divisors is an integer number (17669638).

Almost surely, 2^70654231 is an apocalyptic number.

70654231 is a deficient number, since it is larger than the sum of its proper divisors (24321).

70654231 is a wasteful number, since it uses less digits than its factorization.

70654231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24320.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 70654231 is about 8405.6071166811. The cubic root of 70654231 is about 413.4084899899.

Adding to 70654231 its reverse (13245607), we get a palindrome (83899838).

The spelling of 70654231 in words is "seventy million, six hundred fifty-four thousand, two hundred thirty-one".