61069770 has 24 divisors (see below), whose sum is σ = 158781636. Its totient is φ = 16285248.

The previous prime is 61069769. The next prime is 61069817. The reversal of 61069770 is 7796016.

It can be written as a sum of positive squares in 2 ways, for example, as 57017601 + 4052169 = 7551^2 + 2013^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339187 + ... + 339366.

Almost surely, 2^61069770 is an apocalyptic number.

61069770 is an abundant number, since it is smaller than the sum of its proper divisors (97711866).

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

61069770 is a wasteful number, since it uses less digits than its factorization.

61069770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678566 (or 678563 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 61069770 is about 7814.7149660112. The cubic root of 61069770 is about 393.7997427709.

It can be divided in two parts, 6106 and 9770, that added together give a square (15876 = 126²).

The spelling of 61069770 in words is "sixty-one million, sixty-nine thousand, seven hundred seventy".