70533973 has 4 divisors (see below), whose sum is σ = 70899628. Its totient is φ = 70168320.

The previous prime is 70533971. The next prime is 70534001. The reversal of 70533973 is 37933507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37933507 = 1151 ⋅32957.

It can be written as a sum of positive squares in 2 ways, for example, as 16467364 + 54066609 = 4058^2 + 7353^2 .

It is a cyclic number.

It is not a de Polignac number, because 70533973 - 2¹ = 70533971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70533971) 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 3 ways as a sum of consecutive naturals, for example, 182538 + ... + 182923.

It is an arithmetic number, because the mean of its divisors is an integer number (17724907).

Almost surely, 2^70533973 is an apocalyptic number.

It is an amenable number.

70533973 is a deficient number, since it is larger than the sum of its proper divisors (365655).

70533973 is a wasteful number, since it uses less digits than its factorization.

70533973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365654.

The product of its (nonzero) digits is 59535, while the sum is 37.

The square root of 70533973 is about 8398.4506309200. The cubic root of 70533973 is about 413.1738076002.

It can be divided in two parts, 7053 and 3973, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 70533973 in words is "seventy million, five hundred thirty-three thousand, nine hundred seventy-three".