307398047 has 4 divisors (see below), whose sum is σ = 335343336. Its totient is φ = 279452760.

The previous prime is 307398043. The next prime is 307398061. The reversal of 307398047 is 740893703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740893703 = 11 ⋅67353973.

It is a cyclic number.

It is not a de Polignac number, because 307398047 - 2² = 307398043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 307397995 and 307398013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307398043) 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, 13972628 + ... + 13972649.

It is an arithmetic number, because the mean of its divisors is an integer number (83835834).

Almost surely, 2^307398047 is an apocalyptic number.

307398047 is a deficient number, since it is larger than the sum of its proper divisors (27945289).

307398047 is a wasteful number, since it uses less digits than its factorization.

307398047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27945288.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 307398047 is about 17532.7706595392. The cubic root of 307398047 is about 674.8911004932.

The spelling of 307398047 in words is "three hundred seven million, three hundred ninety-eight thousand, forty-seven".