73853641 has 2 divisors, whose sum is σ = 73853642. Its totient is φ = 73853640.

The previous prime is 73853617. The next prime is 73853651. The reversal of 73853641 is 14635837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41409225 + 32444416 = 6435^2 + 5696^2 .

It is a cyclic number.

It is not a de Polignac number, because 73853641 - 2⁵ = 73853609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73853641.

It is not a weakly prime, because it can be changed into another prime (73853651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36926820 + 36926821.

It is an arithmetic number, because the mean of its divisors is an integer number (36926821).

Almost surely, 2^73853641 is an apocalyptic number.

It is an amenable number.

73853641 is a deficient number, since it is larger than the sum of its proper divisors (1).

73853641 is an equidigital number, since it uses as much as digits as its factorization.

73853641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 73853641 is about 8593.8141124881. The cubic root of 73853641 is about 419.5566769702.

It can be divided in two parts, 7385 and 3641, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 73853641 in words is "seventy-three million, eight hundred fifty-three thousand, six hundred forty-one".