61320710 has 16 divisors (see below), whose sum is σ = 120411792. Its totient is φ = 22298400.

The previous prime is 61320673. The next prime is 61320713. The reversal of 61320710 is 1702316.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61320713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278621 + ... + 278840.

It is an arithmetic number, because the mean of its divisors is an integer number (7525737).

Almost surely, 2^61320710 is an apocalyptic number.

61320710 is a deficient number, since it is larger than the sum of its proper divisors (59091082).

61320710 is a wasteful number, since it uses less digits than its factorization.

61320710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557479.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 61320710 is about 7830.7541143877. The cubic root of 61320710 is about 394.3383893203.

The spelling of 61320710 in words is "sixty-one million, three hundred twenty thousand, seven hundred ten".