613278948 has 12 divisors (see below), whose sum is σ = 1430984240. Its totient is φ = 204426312.

The previous prime is 613278937. The next prime is 613278997. The reversal of 613278948 is 849872316.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×613278948² = 752222136119973408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 613278897 and 613278906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25553278 + ... + 25553301.

Almost surely, 2^613278948 is an apocalyptic number.

It is an amenable number.

613278948 is an abundant number, since it is smaller than the sum of its proper divisors (817705292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613278948 is a wasteful number, since it uses less digits than its factorization.

613278948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51106586 (or 51106584 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 613278948 is about 24764.4694673639. The cubic root of 613278948 is about 849.6094852041.

The spelling of 613278948 in words is "six hundred thirteen million, two hundred seventy-eight thousand, nine hundred forty-eight".