73872901 has 2 divisors, whose sum is σ = 73872902. Its totient is φ = 73872900.

The previous prime is 73872847. The next prime is 73872917. The reversal of 73872901 is 10927837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62489025 + 11383876 = 7905^2 + 3374^2 .

It is an emirp because it is prime and its reverse (10927837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73872901 - 2¹³ = 73864709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73872961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36936450 + 36936451.

It is an arithmetic number, because the mean of its divisors is an integer number (36936451).

Almost surely, 2^73872901 is an apocalyptic number.

It is an amenable number.

73872901 is a deficient number, since it is larger than the sum of its proper divisors (1).

73872901 is an equidigital number, since it uses as much as digits as its factorization.

73872901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 73872901 is about 8594.9346128985. The cubic root of 73872901 is about 419.5931453111.

The spelling of 73872901 in words is "seventy-three million, eight hundred seventy-two thousand, nine hundred one".