61897376 has 12 divisors (see below), whose sum is σ = 121860522. Its totient is φ = 30948672.

The previous prime is 61897373. The next prime is 61897379. The reversal of 61897376 is 67379816.

It is an interprime number because it is at equal distance from previous prime (61897373) and next prime (61897379).

It can be written as a sum of positive squares in only one way, i.e., 44890000 + 17007376 = 6700^2 + 4124^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61897376.

It is not an unprimeable number, because it can be changed into a prime (61897373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967115 + ... + 967178.

Almost surely, 2^61897376 is an apocalyptic number.

It is an amenable number.

61897376 is a deficient number, since it is larger than the sum of its proper divisors (59963146).

61897376 is a wasteful number, since it uses less digits than its factorization.

61897376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934303 (or 1934295 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 61897376 is about 7867.4885446374. The cubic root of 61897376 is about 395.5706668936.

The spelling of 61897376 in words is "sixty-one million, eight hundred ninety-seven thousand, three hundred seventy-six".