73687841 has 2 divisors, whose sum is σ = 73687842. Its totient is φ = 73687840.

The previous prime is 73687819. The next prime is 73687903. The reversal of 73687841 is 14878637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41152225 + 32535616 = 6415^2 + 5704^2 .

It is a cyclic number.

It is not a de Polignac number, because 73687841 - 2⁶ = 73687777 is a prime.

It is a super-2 number, since 2×73687841² = 10859795822482562, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73687792 and 73687801.

It is not a weakly prime, because it can be changed into another prime (73687241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36843920 + 36843921.

It is an arithmetic number, because the mean of its divisors is an integer number (36843921).

Almost surely, 2^73687841 is an apocalyptic number.

It is an amenable number.

73687841 is a deficient number, since it is larger than the sum of its proper divisors (1).

73687841 is an equidigital number, since it uses as much as digits as its factorization.

73687841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 44.

The square root of 73687841 is about 8584.1622188773. The cubic root of 73687841 is about 419.2424761779.

The spelling of 73687841 in words is "seventy-three million, six hundred eighty-seven thousand, eight hundred forty-one".