61790072 has 32 divisors (see below), whose sum is σ = 118801920. Its totient is φ = 30119040.

The previous prime is 61790063. The next prime is 61790077. The reversal of 61790072 is 27009716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61790077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61478 + ... + 62474.

It is an arithmetic number, because the mean of its divisors is an integer number (3712560).

Almost surely, 2^61790072 is an apocalyptic number.

It is an amenable number.

61790072 is a deficient number, since it is larger than the sum of its proper divisors (57011848).

61790072 is a wasteful number, since it uses less digits than its factorization.

61790072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 61790072 is about 7860.6661295338. Note that the first 3 decimals coincide. The cubic root of 61790072 is about 395.3419503241.

Adding to 61790072 its reverse (27009716), we get a palindrome (88799788).

The spelling of 61790072 in words is "sixty-one million, seven hundred ninety thousand, seventy-two".