61597364 has 6 divisors (see below), whose sum is σ = 107795394. Its totient is φ = 30798680.

The previous prime is 61597337. The next prime is 61597387. The reversal of 61597364 is 46379516.

It can be written as a sum of positive squares in only one way, i.e., 41705764 + 19891600 = 6458^2 + 4460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7699667 + ... + 7699674.

It is an arithmetic number, because the mean of its divisors is an integer number (17965899).

Almost surely, 2^61597364 is an apocalyptic number.

It is an amenable number.

61597364 is a deficient number, since it is larger than the sum of its proper divisors (46198030).

61597364 is a wasteful number, since it uses less digits than its factorization.

61597364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15399345 (or 15399343 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 61597364 is about 7848.3988175933. The cubic root of 61597364 is about 394.9305309653.

It can be divided in two parts, 615 and 97364, that added together give a palindrome (97979).

The spelling of 61597364 in words is "sixty-one million, five hundred ninety-seven thousand, three hundred sixty-four".