61527897 has 8 divisors (see below), whose sum is σ = 91152480. Its totient is φ = 41018580.

The previous prime is 61527877. The next prime is 61527919. The reversal of 61527897 is 79872516.

61527897 is a `hidden beast` number, since 615 + 27 + 8 + 9 + 7 = 666.

It is not a de Polignac number, because 61527897 - 2¹² = 61523801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61527847) 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, 1139379 + ... + 1139432.

It is an arithmetic number, because the mean of its divisors is an integer number (11394060).

Almost surely, 2^61527897 is an apocalyptic number.

It is an amenable number.

61527897 is a deficient number, since it is larger than the sum of its proper divisors (29624583).

61527897 is a wasteful number, since it uses less digits than its factorization.

61527897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278820 (or 2278814 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 61527897 is about 7843.9720167782. The cubic root of 61527897 is about 394.7820129276.

The spelling of 61527897 in words is "sixty-one million, five hundred twenty-seven thousand, eight hundred ninety-seven".