72673061 has 4 divisors (see below), whose sum is σ = 73119072. Its totient is φ = 72227052.

The previous prime is 72673049. The next prime is 72673087. The reversal of 72673061 is 16037627.

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 a cyclic number.

It is not a de Polignac number, because 72673061 - 2⁶ = 72672997 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 (72673001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222761 + ... + 223086.

It is an arithmetic number, because the mean of its divisors is an integer number (18279768).

Almost surely, 2^72673061 is an apocalyptic number.

It is an amenable number.

72673061 is a deficient number, since it is larger than the sum of its proper divisors (446011).

72673061 is a wasteful number, since it uses less digits than its factorization.

72673061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446010.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 72673061 is about 8524.8496174419. The cubic root of 72673061 is about 417.3090639705.

The spelling of 72673061 in words is "seventy-two million, six hundred seventy-three thousand, sixty-one".