61671701 has 32 divisors (see below), whose sum is σ = 81527040. Its totient is φ = 45287424.

The previous prime is 61671677. The next prime is 61671703. The reversal of 61671701 is 10717616.

It is not a de Polignac number, because 61671701 - 2¹⁴ = 61655317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61671703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91301 + ... + 91973.

It is an arithmetic number, because the mean of its divisors is an integer number (2547720).

Almost surely, 2^61671701 is an apocalyptic number.

It is an amenable number.

61671701 is a deficient number, since it is larger than the sum of its proper divisors (19855339).

61671701 is a wasteful number, since it uses less digits than its factorization.

61671701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 61671701 is about 7853.1331963746. The cubic root of 61671701 is about 395.0893372678.

The spelling of 61671701 in words is "sixty-one million, six hundred seventy-one thousand, seven hundred one".