61073897 has 2 divisors, whose sum is σ = 61073898. Its totient is φ = 61073896.

The previous prime is 61073893. The next prime is 61073921. The reversal of 61073897 is 79837016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59660176 + 1413721 = 7724^2 + 1189^2 .

It is a cyclic number.

It is not a de Polignac number, because 61073897 - 2² = 61073893 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61073891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30536948 + 30536949.

It is an arithmetic number, because the mean of its divisors is an integer number (30536949).

Almost surely, 2^61073897 is an apocalyptic number.

It is an amenable number.

61073897 is a deficient number, since it is larger than the sum of its proper divisors (1).

61073897 is an equidigital number, since it uses as much as digits as its factorization.

61073897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 61073897 is about 7814.9790146871. The cubic root of 61073897 is about 393.8086133623.

The spelling of 61073897 in words is "sixty-one million, seventy-three thousand, eight hundred ninety-seven".