61077746 has 4 divisors (see below), whose sum is σ = 91616622. Its totient is φ = 30538872.

The previous prime is 61077733. The next prime is 61077767. The reversal of 61077746 is 64777016.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32615521 + 28462225 = 5711^2 + 5335^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15269435 + ... + 15269438.

Almost surely, 2^61077746 is an apocalyptic number.

61077746 is a deficient number, since it is larger than the sum of its proper divisors (30538876).

61077746 is a wasteful number, since it uses less digits than its factorization.

61077746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30538875.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 61077746 is about 7815.2252686663. The cubic root of 61077746 is about 393.8168860591.

The spelling of 61077746 in words is "sixty-one million, seventy-seven thousand, seven hundred forty-six".