61731027 has 6 divisors (see below), whose sum is σ = 89167052. Its totient is φ = 41154012.

The previous prime is 61730993. The next prime is 61731037. The reversal of 61731027 is 72013716.

It is not a de Polignac number, because 61731027 - 2⁷ = 61730899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61731037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3429493 + ... + 3429510.

Almost surely, 2^61731027 is an apocalyptic number.

61731027 is a deficient number, since it is larger than the sum of its proper divisors (27436025).

61731027 is a wasteful number, since it uses less digits than its factorization.

61731027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6859009 (or 6859006 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 61731027 is about 7856.9095069245. The cubic root of 61731027 is about 395.2159839999.

The spelling of 61731027 in words is "sixty-one million, seven hundred thirty-one thousand, twenty-seven".