72842061 has 4 divisors (see below), whose sum is σ = 97122752. Its totient is φ = 48561372.

The previous prime is 72842039. The next prime is 72842083. The reversal of 72842061 is 16024827.

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.

It is an interprime number because it is at equal distance from previous prime (72842039) and next prime (72842083).

It is not a de Polignac number, because 72842061 - 2¹⁰ = 72841037 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 (72842761) 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, 12140341 + ... + 12140346.

It is an arithmetic number, because the mean of its divisors is an integer number (24280688).

Almost surely, 2^72842061 is an apocalyptic number.

It is an amenable number.

72842061 is a deficient number, since it is larger than the sum of its proper divisors (24280691).

72842061 is a wasteful number, since it uses less digits than its factorization.

72842061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24280690.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 72842061 is about 8534.7560597828. The cubic root of 72842061 is about 417.6322953162.

Adding to 72842061 its reverse (16024827), we get a palindrome (88866888).

The spelling of 72842061 in words is "seventy-two million, eight hundred forty-two thousand, sixty-one".