61983957 has 8 divisors (see below), whose sum is σ = 94451776. Its totient is φ = 35419392.

The previous prime is 61983937. The next prime is 61983959. The reversal of 61983957 is 75938916.

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

It is not a de Polignac number, because 61983957 - 2¹² = 61979861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61983959) 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, 1475788 + ... + 1475829.

It is an arithmetic number, because the mean of its divisors is an integer number (11806472).

Almost surely, 2^61983957 is an apocalyptic number.

It is an amenable number.

61983957 is a deficient number, since it is larger than the sum of its proper divisors (32467819).

61983957 is a wasteful number, since it uses less digits than its factorization.

61983957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951627.

The product of its digits is 408240, while the sum is 48.

The square root of 61983957 is about 7872.9890765833. The cubic root of 61983957 is about 395.7550201441.

The spelling of 61983957 in words is "sixty-one million, nine hundred eighty-three thousand, nine hundred fifty-seven".