61430923 has 4 divisors (see below), whose sum is σ = 61475400. Its totient is φ = 61386448.

The previous prime is 61430921. The next prime is 61431001. The reversal of 61430923 is 32903416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61430923 - 2¹ = 61430921 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61430891 and 61430900.

It is not an unprimeable number, because it can be changed into a prime (61430921) 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, 20098 + ... + 22951.

It is an arithmetic number, because the mean of its divisors is an integer number (15368850).

Almost surely, 2^61430923 is an apocalyptic number.

61430923 is a deficient number, since it is larger than the sum of its proper divisors (44477).

61430923 is a wasteful number, since it uses less digits than its factorization.

61430923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44476.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 61430923 is about 7837.7881446235. The cubic root of 61430923 is about 394.5744988117.

The spelling of 61430923 in words is "sixty-one million, four hundred thirty thousand, nine hundred twenty-three".