61070772 has 48 divisors (see below), whose sum is σ = 163237760. Its totient is φ = 17407872.

The previous prime is 61070767. The next prime is 61070791. The reversal of 61070772 is 27707016.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69198 + ... + 70074.

Almost surely, 2^61070772 is an apocalyptic number.

It is an amenable number.

61070772 is an abundant number, since it is smaller than the sum of its proper divisors (102166988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61070772 is a wasteful number, since it uses less digits than its factorization.

61070772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 61070772 is about 7814.7790755721. The cubic root of 61070772 is about 393.8018965107.

Adding to 61070772 its reverse (27707016), we get a palindrome (88777788).

The spelling of 61070772 in words is "sixty-one million, seventy thousand, seven hundred seventy-two".