61423377 has 4 divisors (see below), whose sum is σ = 81897840. Its totient is φ = 40948916.

The previous prime is 61423357. The next prime is 61423459. The reversal of 61423377 is 77332416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61423377 - 2²⁰ = 60374801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61423357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10237227 + ... + 10237232.

It is an arithmetic number, because the mean of its divisors is an integer number (20474460).

Almost surely, 2^61423377 is an apocalyptic number.

It is an amenable number.

61423377 is a deficient number, since it is larger than the sum of its proper divisors (20474463).

61423377 is a wasteful number, since it uses less digits than its factorization.

61423377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20474462.

The product of its digits is 21168, while the sum is 33.

The square root of 61423377 is about 7837.3067440288. The cubic root of 61423377 is about 394.5583420134.

The spelling of 61423377 in words is "sixty-one million, four hundred twenty-three thousand, three hundred seventy-seven".