70654 has 4 divisors (see below), whose sum is σ = 105984. Its totient is φ = 35326.

The previous prime is 70639. The next prime is 70657. The reversal of 70654 is 45607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45607 = 59 ⋅773.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70657) 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 as a sum of consecutive naturals, namely, 17662 + ... + 17665.

It is an arithmetic number, because the mean of its divisors is an integer number (26496).

2⁷⁰⁶⁵⁴ is an apocalyptic number.

70654 is a deficient number, since it is larger than the sum of its proper divisors (35330).

70654 is a wasteful number, since it uses less digits than its factorization.

70654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35329.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 70654 is about 265.8082015288. The cubic root of 70654 is about 41.3408039451.

The spelling of 70654 in words is "seventy thousand, six hundred fifty-four".