61497748 has 36 divisors (see below), whose sum is σ = 120593340. Its totient is φ = 27396096.

The previous prime is 61497743. The next prime is 61497749. The reversal of 61497748 is 84779416.

It can be written as a sum of positive squares in 6 ways, for example, as 784 + 61496964 = 28^2 + 7842^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61497698 and 61497707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61497743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18036 + ... + 21172.

It is an arithmetic number, because the mean of its divisors is an integer number (3349815).

Almost surely, 2^61497748 is an apocalyptic number.

It is an amenable number.

61497748 is a deficient number, since it is larger than the sum of its proper divisors (59095592).

61497748 is a wasteful number, since it uses less digits than its factorization.

61497748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196 (or 3181 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 61497748 is about 7842.0499870888. The cubic root of 61497748 is about 394.7175206237.

The spelling of 61497748 in words is "sixty-one million, four hundred ninety-seven thousand, seven hundred forty-eight".