61931248 has 10 divisors (see below), whose sum is σ = 119991824. Its totient is φ = 30965616.

The previous prime is 61931239. The next prime is 61931257. The reversal of 61931248 is 84213916.

It is an interprime number because it is at equal distance from previous prime (61931239) and next prime (61931257).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1935336 + ... + 1935367.

Almost surely, 2^61931248 is an apocalyptic number.

61931248 is the 4207-th centered heptagonal number.

It is an amenable number.

61931248 is a deficient number, since it is larger than the sum of its proper divisors (58060576).

61931248 is a wasteful number, since it uses less digits than its factorization.

61931248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870711 (or 3870705 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 61931248 is about 7869.6409066742. The cubic root of 61931248 is about 395.6428095657.

The spelling of 61931248 in words is "sixty-one million, nine hundred thirty-one thousand, two hundred forty-eight".