729919954 has 4 divisors (see below), whose sum is σ = 1094879934. Its totient is φ = 364959976.

The previous prime is 729919921. The next prime is 729919991. The reversal of 729919954 is 459919927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 459919927 = 59 ⋅7795253.

It can be written as a sum of positive squares in only one way, i.e., 541818729 + 188101225 = 23277^2 + 13715^2 .

It is a junction number, because it is equal to n+sod(n) for n = 729919895 and 729919904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182479987 + ... + 182479990.

Almost surely, 2^729919954 is an apocalyptic number.

729919954 is a deficient number, since it is larger than the sum of its proper divisors (364959980).

729919954 is a wasteful number, since it uses less digits than its factorization.

729919954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364959979.

The product of its digits is 1837080, while the sum is 55.

The square root of 729919954 is about 27017.0308139144. The cubic root of 729919954 is about 900.3784227554.

The spelling of 729919954 in words is "seven hundred twenty-nine million, nine hundred nineteen thousand, nine hundred fifty-four".