61693071 has 8 divisors (see below), whose sum is σ = 89735424. Its totient is φ = 37389720.

The previous prime is 61693043. The next prime is 61693087. The reversal of 61693071 is 17039616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61693071 - 2⁹ = 61692559 is a prime.

It is a super-2 number, since 2×61693071² = 7612070018822082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1869487 = 61693071 / (6 + 1 + 6 + 9 + 3 + 0 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61693871) 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, 934711 + ... + 934776.

It is an arithmetic number, because the mean of its divisors is an integer number (11216928).

Almost surely, 2^61693071 is an apocalyptic number.

61693071 is a deficient number, since it is larger than the sum of its proper divisors (28042353).

61693071 is a wasteful number, since it uses less digits than its factorization.

61693071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869501.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 61693071 is about 7854.4936819632. The cubic root of 61693071 is about 395.1349664299.

The spelling of 61693071 in words is "sixty-one million, six hundred ninety-three thousand, seventy-one".