70654221 has 32 divisors (see below), whose sum is σ = 114791040. Its totient is φ = 42595200.

The previous prime is 70654219. The next prime is 70654223. The reversal of 70654221 is 12245607.

70654221 is a `hidden beast` number, since 7 + 0 + 654 + 2 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (70654219) and next prime (70654223).

It is not a de Polignac number, because 70654221 - 2¹ = 70654219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70654223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68691 + ... + 69711.

It is an arithmetic number, because the mean of its divisors is an integer number (3587220).

Almost surely, 2^70654221 is an apocalyptic number.

It is an amenable number.

70654221 is a deficient number, since it is larger than the sum of its proper divisors (44136819).

70654221 is a wasteful number, since it uses less digits than its factorization.

70654221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 70654221 is about 8405.6065218401. The cubic root of 70654221 is about 413.4084704860.

Adding to 70654221 its reverse (12245607), we get a palindrome (82899828).

The spelling of 70654221 in words is "seventy million, six hundred fifty-four thousand, two hundred twenty-one".