61397353 has 8 divisors (see below), whose sum is σ = 65349288. Its totient is φ = 57483264.

The previous prime is 61397339. The next prime is 61397359. The reversal of 61397353 is 35379316.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17413929 + 43983424 = 4173^2 + 6632^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61397353 - 2¹³ = 61389161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61397359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6076 + ... + 12637.

It is an arithmetic number, because the mean of its divisors is an integer number (8168661).

Almost surely, 2^61397353 is an apocalyptic number.

It is an amenable number.

61397353 is a deficient number, since it is larger than the sum of its proper divisors (3951935).

61397353 is a wasteful number, since it uses less digits than its factorization.

61397353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18923.

The product of its digits is 51030, while the sum is 37.

The square root of 61397353 is about 7835.6463039114. The cubic root of 61397353 is about 394.5026116751.

The spelling of 61397353 in words is "sixty-one million, three hundred ninety-seven thousand, three hundred fifty-three".