73761397 has 2 divisors, whose sum is σ = 73761398. Its totient is φ = 73761396.

The previous prime is 73761361. The next prime is 73761421. The reversal of 73761397 is 79316737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55219761 + 18541636 = 7431^2 + 4306^2 .

It is a cyclic number.

It is not a de Polignac number, because 73761397 - 2²³ = 65372789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73761197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36880698 + 36880699.

It is an arithmetic number, because the mean of its divisors is an integer number (36880699).

Almost surely, 2^73761397 is an apocalyptic number.

It is an amenable number.

73761397 is a deficient number, since it is larger than the sum of its proper divisors (1).

73761397 is an equidigital number, since it uses as much as digits as its factorization.

73761397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 166698, while the sum is 43.

The square root of 73761397 is about 8588.4455520193. The cubic root of 73761397 is about 419.3819272460.

The spelling of 73761397 in words is "seventy-three million, seven hundred sixty-one thousand, three hundred ninety-seven".