61950997 has 2 divisors, whose sum is σ = 61950998. Its totient is φ = 61950996.

The previous prime is 61950991. The next prime is 61951033. The reversal of 61950997 is 79905916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34503876 + 27447121 = 5874^2 + 5239^2 .

It is a cyclic number.

It is not a de Polignac number, because 61950997 - 2⁷ = 61950869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61950991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30975498 + 30975499.

It is an arithmetic number, because the mean of its divisors is an integer number (30975499).

Almost surely, 2^61950997 is an apocalyptic number.

It is an amenable number.

61950997 is a deficient number, since it is larger than the sum of its proper divisors (1).

61950997 is an equidigital number, since it uses as much as digits as its factorization.

61950997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 61950997 is about 7870.8955653089. The cubic root of 61950997 is about 395.6848600637.

The spelling of 61950997 in words is "sixty-one million, nine hundred fifty thousand, nine hundred ninety-seven".