72072853 has 4 divisors (see below), whose sum is σ = 72182880. Its totient is φ = 71962828.

The previous prime is 72072841. The next prime is 72072857. The reversal of 72072853 is 35827027.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35827027 = 19 ⋅1885633.

It is a cyclic number.

It is not a de Polignac number, because 72072853 - 2¹⁷ = 71941781 is a prime.

It is a super-2 number, since 2×72072853² = 10388992279119218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72072857) 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, 54025 + ... + 55342.

It is an arithmetic number, because the mean of its divisors is an integer number (18045720).

Almost surely, 2^72072853 is an apocalyptic number.

It is an amenable number.

72072853 is a deficient number, since it is larger than the sum of its proper divisors (110027).

72072853 is a wasteful number, since it uses less digits than its factorization.

72072853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110026.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 72072853 is about 8489.5731930410. The cubic root of 72072853 is about 416.1570324470.

It can be divided in two parts, 72072 and 853, that multiplied together give a palindrome (61477416).

The spelling of 72072853 in words is "seventy-two million, seventy-two thousand, eight hundred fifty-three".