61497836 has 6 divisors (see below), whose sum is σ = 107621220. Its totient is φ = 30748916.

The previous prime is 61497833. The next prime is 61497841. The reversal of 61497836 is 63879416.

It is not an unprimeable number, because it can be changed into a prime (61497833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7687226 + ... + 7687233.

It is an arithmetic number, because the mean of its divisors is an integer number (17936870).

Almost surely, 2^61497836 is an apocalyptic number.

It is an amenable number.

61497836 is a deficient number, since it is larger than the sum of its proper divisors (46123384).

61497836 is a wasteful number, since it uses less digits than its factorization.

61497836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15374463 (or 15374461 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 61497836 is about 7842.0555978646. The cubic root of 61497836 is about 394.7177088969.

The spelling of 61497836 in words is "sixty-one million, four hundred ninety-seven thousand, eight hundred thirty-six".