61001698 has 4 divisors (see below), whose sum is σ = 91502550. Its totient is φ = 30500848.

The previous prime is 61001623. The next prime is 61001711. The reversal of 61001698 is 89610016.

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., 60419529 + 582169 = 7773^2 + 763^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15250423 + ... + 15250426.

Almost surely, 2^61001698 is an apocalyptic number.

61001698 is a deficient number, since it is larger than the sum of its proper divisors (30500852).

61001698 is a wasteful number, since it uses less digits than its factorization.

61001698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30500851.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 61001698 is about 7810.3583784613. The cubic root of 61001698 is about 393.6533708295.

The spelling of 61001698 in words is "sixty-one million, one thousand, six hundred ninety-eight".