61020770 has 32 divisors (see below), whose sum is σ = 114222528. Its totient is φ = 23450688.

The previous prime is 61020731. The next prime is 61020779. The reversal of 61020770 is 7702016.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61020779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29717 + ... + 31703.

It is an arithmetic number, because the mean of its divisors is an integer number (3569454).

Almost surely, 2^61020770 is an apocalyptic number.

61020770 is a deficient number, since it is larger than the sum of its proper divisors (53201758).

61020770 is a wasteful number, since it uses less digits than its factorization.

61020770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 61020770 is about 7811.5792257392. The cubic root of 61020770 is about 393.6943914078.

Adding to 61020770 its reverse (7702016), we get a palindrome (68722786).

The spelling of 61020770 in words is "sixty-one million, twenty thousand, seven hundred seventy".