61456377 has 8 divisors (see below), whose sum is σ = 86762016. Its totient is φ = 38560832.

The previous prime is 61456361. The next prime is 61456397. The reversal of 61456377 is 77365416.

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 61456377 - 2⁴ = 61456361 is a prime.

It is a super-2 number, since 2×61456377² = 7553772547932258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61456337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602463 + ... + 602564.

It is an arithmetic number, because the mean of its divisors is an integer number (10845252).

Almost surely, 2^61456377 is an apocalyptic number.

It is an amenable number.

61456377 is a deficient number, since it is larger than the sum of its proper divisors (25305639).

61456377 is a wasteful number, since it uses less digits than its factorization.

61456377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205047.

The product of its digits is 105840, while the sum is 39.

The square root of 61456377 is about 7839.4117764026. The cubic root of 61456377 is about 394.6289888087.

The spelling of 61456377 in words is "sixty-one million, four hundred fifty-six thousand, three hundred seventy-seven".