61935949 has 2 divisors, whose sum is σ = 61935950. Its totient is φ = 61935948.

The previous prime is 61935943. The next prime is 61935971. The reversal of 61935949 is 94953916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40729924 + 21206025 = 6382^2 + 4605^2 .

It is a cyclic number.

It is not a de Polignac number, because 61935949 - 2¹⁹ = 61411661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61935899 and 61935908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61935943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30967974 + 30967975.

It is an arithmetic number, because the mean of its divisors is an integer number (30967975).

Almost surely, 2^61935949 is an apocalyptic number.

It is an amenable number.

61935949 is a deficient number, since it is larger than the sum of its proper divisors (1).

61935949 is an equidigital number, since it uses as much as digits as its factorization.

61935949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 46.

The square root of 61935949 is about 7869.9395804542. The cubic root of 61935949 is about 395.6528199663.

The spelling of 61935949 in words is "sixty-one million, nine hundred thirty-five thousand, nine hundred forty-nine".