61432977 has 8 divisors (see below), whose sum is σ = 85472064. Its totient is φ = 39174608.

The previous prime is 61432957. The next prime is 61432981. The reversal of 61432977 is 77923416.

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

It is a cyclic number.

It is not a de Polignac number, because 61432977 - 2¹⁶ = 61367441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61432927) 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, 445098 + ... + 445235.

It is an arithmetic number, because the mean of its divisors is an integer number (10684008).

Almost surely, 2^61432977 is an apocalyptic number.

It is an amenable number.

61432977 is a deficient number, since it is larger than the sum of its proper divisors (24039087).

61432977 is a wasteful number, since it uses less digits than its factorization.

61432977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890359.

The product of its digits is 63504, while the sum is 39.

The square root of 61432977 is about 7837.9191753934. The cubic root of 61432977 is about 394.5788964177.

The spelling of 61432977 in words is "sixty-one million, four hundred thirty-two thousand, nine hundred seventy-seven".