73620061 has 2 divisors, whose sum is σ = 73620062. Its totient is φ = 73620060.

The previous prime is 73620037. The next prime is 73620073. The reversal of 73620061 is 16002637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38514436 + 35105625 = 6206^2 + 5925^2 .

It is a cyclic number.

It is not a de Polignac number, because 73620061 - 2⁷ = 73619933 is a prime.

It is equal to p_4318243 and since 73620061 and 4318243 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73620161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36810030 + 36810031.

It is an arithmetic number, because the mean of its divisors is an integer number (36810031).

Almost surely, 2^73620061 is an apocalyptic number.

It is an amenable number.

73620061 is a deficient number, since it is larger than the sum of its proper divisors (1).

73620061 is an equidigital number, since it uses as much as digits as its factorization.

73620061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 73620061 is about 8580.2133423360. The cubic root of 73620061 is about 419.1138933535.

Adding to 73620061 its reverse (16002637), we get a palindrome (89622698).

The spelling of 73620061 in words is "seventy-three million, six hundred twenty thousand, sixty-one".