61399024 has 10 divisors (see below), whose sum is σ = 118960640. Its totient is φ = 30699504.

The previous prime is 61399007. The next prime is 61399031. The reversal of 61399024 is 42099316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1918704 + ... + 1918735.

It is an arithmetic number, because the mean of its divisors is an integer number (11896064).

Almost surely, 2^61399024 is an apocalyptic number.

It is an amenable number.

61399024 is a deficient number, since it is larger than the sum of its proper divisors (57561616).

61399024 is a wasteful number, since it uses less digits than its factorization.

61399024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837447 (or 3837441 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 61399024 is about 7835.7529312760. The cubic root of 61399024 is about 394.5061905909.

The spelling of 61399024 in words is "sixty-one million, three hundred ninety-nine thousand, twenty-four".