61399701 has 40 divisors (see below), whose sum is σ = 100989504. Its totient is φ = 36866880.

The previous prime is 61399691. The next prime is 61399711. The reversal of 61399701 is 10799316.

61399701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61399691) and next prime (61399711).

It is not a de Polignac number, because 61399701 - 2⁷ = 61399573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61399711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 121816 + ... + 122318.

Almost surely, 2^61399701 is an apocalyptic number.

It is an amenable number.

61399701 is a deficient number, since it is larger than the sum of its proper divisors (39589803).

61399701 is a wasteful number, since it uses less digits than its factorization.

61399701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 61399701 is about 7835.7961305792. The cubic root of 61399701 is about 394.5076405581.

The spelling of 61399701 in words is "sixty-one million, three hundred ninety-nine thousand, seven hundred one".