61472072 has 8 divisors (see below), whose sum is σ = 115260150. Its totient is φ = 30736032.

The previous prime is 61472063. The next prime is 61472129. The reversal of 61472072 is 27027416.

It can be written as a sum of positive squares in only one way, i.e., 30846916 + 30625156 = 5554^2 + 5534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3841997 + ... + 3842012.

Almost surely, 2^61472072 is an apocalyptic number.

It is an amenable number.

61472072 is a deficient number, since it is larger than the sum of its proper divisors (53788078).

61472072 is a wasteful number, since it uses less digits than its factorization.

61472072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684015 (or 7684011 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 61472072 is about 7840.4127442374. The cubic root of 61472072 is about 394.6625799786.

Adding to 61472072 its reverse (27027416), we get a palindrome (88499488).

The spelling of 61472072 in words is "sixty-one million, four hundred seventy-two thousand, seventy-two".