61395629 has 2 divisors, whose sum is σ = 61395630. Its totient is φ = 61395628.

The previous prime is 61395623. The next prime is 61395647. The reversal of 61395629 is 92659316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56220004 + 5175625 = 7498^2 + 2275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61395629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61395623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30697814 + 30697815.

It is an arithmetic number, because the mean of its divisors is an integer number (30697815).

Almost surely, 2^61395629 is an apocalyptic number.

It is an amenable number.

61395629 is a deficient number, since it is larger than the sum of its proper divisors (1).

61395629 is an equidigital number, since it uses as much as digits as its factorization.

61395629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 41.

The square root of 61395629 is about 7835.5362930689. The cubic root of 61395629 is about 394.4989191767.

The spelling of 61395629 in words is "sixty-one million, three hundred ninety-five thousand, six hundred twenty-nine".